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MIL-F-5509



Fittings, Flared Tube, Fluid Connection FSC: 4730

This specification establishes the requirements for flared tube, pipe threaded, and beaded type fluid connection fittings for use in all types of fluid systems.

This specification has been canceled. See Notice 2 for supersession information.




Points of Contact:

Fluid Flow Group Phone: 614-692-YYYY Email: FluidFlow@dla.mil

Document Downloads

Fittings, Flared Tube, Fluid Connection (Cancellation Notice)
Dated: 30 September 1998
File name: mil5509not2.pdf, File Size: 9 kb

Nut, Tube (Cancellation Notice)
Dated: 28 September 1999
File name: an6289not2.pdf, File Size: 8 kb

Bolt - Flared Tube Fitting End Universal
Dated: 19 July 2011
File name: an774rev8.pdf, File Size: 76 kb

Bolt, Fluid Passage
Dated: 28 March 2018
File name: an775rev15.pdf, File Size: 102 kb

Connector, Multiple Fluid Pressure Line, 90° (Cancellation Notice)
Dated: 29 September 2000
File name: an776not1.pdf, File Size: 76 kb

Connector, Multiple Fluid Pressure Line, 75° (Cancellation Notice)
Dated: 29 September 2000
File name: an777not1.pdf, File Size: 8 kb

Connector, Multiple Fluid Pressure Line, 45° (Cancellation Notice)
Dated: 29 September 2000
File name: an778not1.pdf, File Size: 76 kb

Connector, Multiple Fluid Pressure Line, Straight (Cancellation Notice)
Dated: 29 September 2000
File name: an779not1.pdf, File Size: 6 kb

Tee, Flared Tube, Internal Thread on Side (Cancellation Notice)
Dated: 15 November 2010
File name: an783not2.pdf, File Size: 14 kb

Tee, Flared Tube, Internal Thread on Run (Cancellation Notice)
Dated: 15 November 2010
File name: an784not2.pdf, File Size: 14 kb

Tee, Flared Tube with Bulkhead on Run (Cancellation Notice)
Dated: 15 November 2010
File name: an804not2.pdf, File Size: 16 kb

Plug, Flared Tube (Cancellation Notice)
Dated: 28 September 1999
File name: an806not1.pdf, File Size: 9 kb

Adapter, Straight, Tube to Hose
Dated: 20 April 2007
File name: an807rev7.pdf, File Size: 142 kb

Plug and Bleeder, Screw Thread (Cancellation Notice)
Dated: 28 September 1999
File name: an814not1.pdf, File Size: 12 kb

Union, Flared Tube
Dated: 20 February 2020
File name: an815.pdf, File Size: 151 kb

Adapter, Straight, Pipe to Tube
Dated: 15 April 1988
File name: an816.pdf, File Size: 114 kb

Adapter, Straight, Pipe to Tube (Cancellation Notice)
Dated: 19 May 2000
File name: an816not1.pdf, File Size: 13 kb

AN817, Dated 31 March 1987, Is Hereby Cancelled. Future Acquisitions for This Item Should Refer to <a href="http://www.sae.org/">SAE</a> Standard AS5206, "Nut, Flared Long".
Dated: 31 July 2002
File name: an817not1.pdf, File Size: 11 kb

Nut, Tube Coupling, Short
Dated: 26 September 2024
File name: an818.pdf, File Size: 118 kb

Elbow - Flared Tube, 90° (Cancellation Notice)
Dated: 15 November 2010
File name: an821not2.pdf, File Size: 16 kb

Tee - Flared Tube (Cancellation Notice)
Dated: 15 November 2010
File name: an824not2.pdf, File Size: 16 kb

Cross - Flared Tube (Cancellation Notice)
Dated: 15 November 2010
File name: an827not2.pdf, File Size: 16 kb

Union - Flared Tube, 3/8 Bulkhead and Universal (Cancellation Notice)
Dated: 01 February 2000
File name: an832not1.pdf, File Size: 9 kb

Elbow - Flared Tube and Bulkhead Universal, 90° (Cancellation Notice)
Dated: 15 November 2010
File name: an833not2.pdf, File Size: 16 kb

Tee, Bulkhead and Universal Flared Tube (Cancellation Notice)
Dated: 15 November 2010
File name: an834not2.pdf, File Size: 16 kb

Elbow, Flared Tube and Universal, 45° (Cancellation Notice)
Dated: 15 November 2010
File name: an837not2.pdf, File Size: 16 kb

Elbow, Tube to Hose, 90°
Dated: 04 December 2023
File name: an838.pdf, File Size: 124 kb

Elbow, Tube to Hose, 45 Degree
Dated: 18 November 2024
File name: an839.pdf, File Size: 144 kb

Adapter, Straight, Pipe to Hose
Dated: 18 November 2024
File name: an840.pdf, File Size: 178 kb

Adapter, Hose to Flared Tube
Dated: 12 March 2020
File name: an841.pdf, File Size: 102 kb

Elbow, Pipe to Hose. 90°
Dated: 18 November 2024
File name: an842.pdf, File Size: 166 kb

Elbow, Pipe to Hose, 45°
Dated: 12 March 2020
File name: an844.pdf, File Size: 126 kb

Elbow, Hose, 45 Deg.
Dated: 12 March 2020
File name: an846.pdf, File Size: 129 kb

Elbow, Hose, 90 Deg.
Dated: 21 June 2023
File name: an848.pdf, File Size: 166 kb

Nipple, Hose
Dated: 01 April 2025
File name: an849.pdf, File Size: 172 kb

Flange - Straight Thread Boss Welding (Cancellation Notice)
Dated: 20 December 2002
File name: an871not1.pdf, File Size: 81 kb

Bushing, Screw Thread, Reducer (Cancellation Notice)
Dated: 23 February 2001
File name: an893not2.pdf, File Size: 12 kb

Bushing, Screw Thread, Expander (Cancellation Notice)
Dated: 11 May 2009
File name: an894not3.pdf, File Size: 28 kb

Coupling, Pipe
Dated: 30 November 2021
File name: an910.pdf, File Size: 117 kb

Nipple, Pipe
Dated: 19 July 2011
File name: an911rev10.pdf, File Size: 60 kb

Bushing, Pipe
Dated: 12 June 2012
File name: an912rev10.pdf, File Size: 81 kb

Elbow, Pipe, Internal and External Thread, 90°
Dated: 01 March 2018
File name: an914.pdf, File Size: 142 kb

Elbow, Pipe, 45 Degree
Dated: 01 April 2025
File name: an915.pdf, File Size: 129 kb

Elbow, Pipe, Internal Thread, 90°
Dated: 19 July 2011
File name: an916rev11.pdf, File Size: 58 kb

Tee, Pipe
Dated: 19 July 2011
File name: an917rev9.pdf, File Size: 57 kb

Cross, Pipe
Dated: 08 December 2020
File name: an918.pdf, File Size: 97 kb

Reducer, External Thread Flared Tube (Cancellation Notice)
Dated: 23 March 2011
File name: an919not3.pdf, File Size: 77 kb

Cap Assembly, Pressure Seal, Flared Tube Fitting
Dated: 29 August 2017
File name: an929.pdf, File Size: 141 kb

Plug, Pipe, Hex Head (Cancellation Notice)
Dated: 22 April 1999
File name: an933not1.pdf, File Size: 10 kb

Cross, Tube, Internal Thread (Cancellation Notice)
Dated: 29 September 2000
File name: an937not1.pdf, File Size: 6 kb

Tee, Tube, Internal Thread (Cancellation Notice)
Dated: 11 May 2009
File name: an938not3.pdf, File Size: 14 kb

Elbow, Tube, Internal Thread, 90° (Cancellation Notice)
Dated: 11 May 2009
File name: an939not2.pdf, File Size: 18 kb

Elbow, Tube, Internal Thread, 45° (Cancellation Notice)
Dated: 29 September 2000
File name: an941not1.pdf, File Size: 8 kb

Flange, Swivel, Retaining
Dated: 25 August 2021
File name: ms20756.pdf, File Size: 305 kb

Connector, Fixed Flange, to Hose
Dated: 12 February 2013
File name: ms20757.pdf, File Size: 77 kb

Adapter, Straight, Flange to Tube
Dated: 18 October 2021
File name: ms20760.pdf, File Size: 159 kb

Sleeve, Flared Tube Fitting (Cancellation Notice)
Dated: 28 September 1999
File name: ms20819not1.pdf, File Size: 6 kb

Elbow, Flared Tube and Pipe Threads, 90° (Cancellation Notice)
Dated: 29 September 2000
File name: ms20822not1.pdf, File Size: 14 kb

Elbow, 45° Pipe to Flared (Cancellation Notice)
Dated: 29 September 2000
File name: ms20823not1.pdf, File Size: 11 kb

Tee, Pipe to Tube, Pipe Thread on Side (Cancellation Notice)
Dated: 29 September 2000
File name: ms20825not1.pdf, File Size: 10 kb

Tee, Pipe to Tube, Pipe Thread on Run (Cancellation Notice)
Dated: 29 September 2000
File name: ms20826not1.pdf, File Size: 10 kb

Plug, Pipe, External Thread (Cancellation Notice)
Dated: 12 July 2005
File name: ms20913not2.pdf, File Size: 81 kb

Body, Cluster Fitting, One Way, Internal Boss
Dated: 26 February 2013
File name: ms21946.pdf, File Size: 85 kb

Bolt-Cluster Fitting Single Port-Flare
Dated: 14 August 2014
File name: ms21949.pdf, File Size: 55 kb

Bolt-Cluster Fitting Single Port through-Flare (Inactivation Notice)
Dated: 31 August 2023
File name: ms21950.pdf, File Size: 142 kb

Body, Cluster Fitting One-Way, Flare
Dated: 14 February 2025
File name: ms21953.pdf, File Size: 161 kb

Body Cluster Fitting Two Way 90 Deg., Flare
Dated: 09 April 2015
File name: ms21954.pdf, File Size: 77 kb

Body-Cluster Fitting Two Way 180°, Flare
Dated: 06 April 2009
File name: ms21955.pdf, File Size: 69 kb

Body, Cluster Fitting, Two-Way 180 Deg., Flare (Validation Notice)
Dated: 10 May 2019
File name: ms21955not2.pdf, File Size: 12 kb

Body, Cluster Fitting, Two-Way, 180°, Internal Boss
Dated: 04 August 2011
File name: ms21958.pdf, File Size: 74 kb

Body, Cluster Fitting, Two Way, 90°, Internal Boss
Dated: 04 August 2011
File name: ms21959.pdf, File Size: 76 kb

Body, Cluster Fitting, Three Way, Internal Boss
Dated: 04 August 2011
File name: ms21960.pdf, File Size: 77 kb

Tee, Flared Tube, Internal Thread on Side, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24388not2.pdf, File Size: 14 kb

Tee, Tube, Internal Thread on Run, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24389not2.pdf, File Size: 40 kb

Tee, Flared Tube with Bulkhead on Run - Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24390not2.pdf, File Size: 15 kb

Plug, Bleeder, Tube, Precision Type (Cancellation Notice)
Dated: 28 September 1999
File name: ms24391not1.pdf, File Size: 12 kb

Nipple, Tube, Precision Type (Cancellation Notice)
Dated: 21 January 2009
File name: ms24392not2.pdf, File Size: 16 kb

Nipple, Tube, 3/8 Bulkhead, Precision Type
Dated: 16 April 1982
File name: ms24393.pdf, File Size: 86 kb

Nipple, Tube, 3/8 Bulkhead, Precision Type (Cancellation Notice)
Dated: 01 February 2000
File name: ms24393not1.pdf, File Size: 9 kb

Elbow, Tube, Bulkhead, 90°, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24394not2.pdf, File Size: 16 kb

Elbow, Tube, Bulkhead, 90°, Precision Type (Cancellation Notice)
Dated: 05 May 2025
File name: ms24394not3.pdf, File Size: 117 kb

Tee, Tube, Bulkhead, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24395not2.pdf, File Size: 16 kb

Elbow, Tube, Bulkhead, 45°, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24396not2.pdf, File Size: 16 kb

MS24397 Rev. F, dated 16 April 1982, is hereby cancelled. Future acquisitions for this item should refer to the Society of Automotive Engineers (SAE) Aerospace Standard, <a>AS5172</a>, "Fitting, Adapter, Port, Reducer.
Dated: 23 February 2001
File name: ms24397not2.pdf, File Size: 12 kb

MS24398 Rev. H, dated 10 February 1984, is hereby cancelled. Future acquisitions for this item should refer to the Society of Automotive Engineers (SAE) Aerospace Standard, <a>AS5173</a>, "Fitting, Bushing, Port, Reducer.
Dated: 10 May 2009
File name: ms24398not3.pdf, File Size: 55 kb

Reducer, Tube, Precision Type (Cancellation Notice)
Dated: 21 January 2009
File name: ms24399not2.pdf, File Size: 27 kb

Elbow, Tube, 90°, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24401not2.pdf, File Size: 16 kb

Tee, Tube, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24402not2.pdf, File Size: 16 kb

Tee, Tube, Precision Type (Cancellation Notice)
Dated: 01 December 2010
File name: ms24403not2.pdf, File Size: 16 kb

Plug, Tube, Precision Type (Cancellation Notice)
Dated: 28 September 1999
File name: ms24404not1.pdf, File Size: 8 kb

Nipple, Tube, 37° to 45° Seat
Dated: 22 March 1979
File name: ms24487.pdf, File Size: 99 kb

Nipple, Tube, 37° to 45° Seat (Cancellation Notice)
Dated: 17 February 2000
File name: ms24487not1.pdf, File Size: 8 kb

Plug, Pipe, Countersink Hex Head
Dated: 03 January 2022
File name: ms27769.pdf, File Size: 207 kb

Valve, Hydraulic Bleeder
Dated: 04 November 2013
File name: an6204.pdf, File Size: 44 kb

AN6285 Rev. 3, Dated 21 March 1979, Is Hereby Cancelled. Future Acquisitions for This Item Should Refer to the SAE Aerospace Standard (AS) <a>AS5166</a>, "Fitting, Tee, Air Pressure Gage" and the SAE Aerospace Standard (AS) <a>AS5167</a>, "Fitting, Adapter, Flared, Air Pressure Gage."
Dated: 18 January 2002
File name: an6285not1.pdf, File Size: 10 kb


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