1、SAE Technical Standards Board Rules provide that: This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom
2、, is the sole responsibility of the user.SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.Copyright 2001 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.
3、TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790 SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001AEROSPACE STANDARDAS4875/1Issued 1995-05Reaffirmed 2001-12Fittings, Straight Thread Boss or Flanged to 37 Flared, Fluid Connection1. SCOPE:1.1 Scope:This S
4、AE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both straight thread boss or flanged connections and 37 flared connections for use in all types of fluid systems.1.2 Classification:Fittings shall be furnished in the types and styles designated by the applicable
5、 AN and other engineering standard drawings. This specification is the same as MIL-F-5509 as applicable to straight thread boss or flanged to 37 flared tube fittings except for updated materials and process specifications and industry coordinated general improvements. It is intended to serve as a pr
6、ocurement specification for the fittings described herein and in Section 6.2. REFERENCES:2.1 Applicable Documents:The following publications form a part of this specification to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications
7、shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this specification and references cited herein, the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a sp
8、ecific exemption has been obtained.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE AS4875/1 - 2 -2.1.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AS4395
9、 Fitting End - Flared Tube Connection, Design StandardAS4396 Fitting End - Bulkhead Flared Tube Connection, Design StandardAS4841 Fittings, 37 Flared, Fluid ConnectionAS4875 Fittings, Straight Thread Boss and Flanged, Fluid Connection2.1.2 U.S. Government Publications: Available from DODSSP, Subscri
10、ption Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.MS21947 Fitting End - Bolt Cluster Fitting Single Port Through-FlareMS33649 Bosses, Fluid Connection Internal Straight ThreadMS33656 Fitting End, Standard Dimensions for Flared Tube Connection and Gasket SealMS33657 Fi
11、tting End, Standard Dimensions for Bulkhead Flared Tube Connection3. TECHNICAL REQUIREMENTS:3.1 Material:See AS4875.3.2 Design and Fabrication:The design and fabrication of the fittings shall be in accordance with the applicable drawings. The straight thread boss connections and the 37 cone ends of
12、fittings shall be in accordance with MS21947, MS33649, MS33656, MS33657, AS4395, or AS4396 as applicable. The 37 cone flared fitting ends shall meet the requirements of AS4841 as applicable.3.3 Finish:See AS4875.3.4 Identification of Product:See AS4875.3.5 Workmanship:See AS4875 for the straight thr
13、ead boss and flanged ends and fitting bodies and AS4841 for the 37 flared ends.4. QUALITY ASSURANCE PROVISIONS:See AS4875 for the straight thread boss and flanged ends and fitting bodies and AS4841 for the 37 flared ends.Copyright SAE International Provided by IHS under license with SAENot for Resal
14、eNo reproduction or networking permitted without license from IHS-,-SAE AS4875/1 - 3 -5. PREPARATION FOR DELIVERY:See AS4875.6. NOTES:6.1 Intended Use:See AS4875.6.2 Assembly:See AS4875 for straight thread boss and flanged ends. For 37 cone fitting ends see 6.1 of AS4841.6.3 Superseding Information:
15、This specification is intended to be suitable for designation as a procurement specification for straight thread boss and flanged fittings that also have a 37 cone flared fitting end. The specification is intended to be a replacement as a primary procurement specification for the following fittings
16、that have MIL-F-5509 designated as a procurement specification:AN774 Bolt - Flared Tube Fittings End UniversalAN776 Connector, Multiple Fluid Pressure Line, 90AN777 Connector, Multiple Fluid Pressure Line, 75AN778 Connector, Multiple Fluid Pressure Line, 45AN779 Connector, Multiple Fluid Pressure, S
17、traightAS933 Adapter - Flared Tube to BossAS934 Adapter - Reducer/Expander, Flared Tube to BossAS1031 Reducer Tee - Bulkhead on Run, Internally Threaded Side Port, Flared TubeAS1032 Tee, Reducer - Bulkhead and Internally Threaded Port on Run, Flared TubeMS20760 Adapter, Straight, Flange to TubeMS219
18、50 Bolt - Cluster Fitting Single Port Through - FlareMS21951 Bolt - Cluster Fitting Double Port - FlareMS21953 Body - Cluster Fitting One Way - FlareMS21954 Body Cluster Fitting Two Way 90 - FlareMS21955 Body - Cluster Fitting Two Way 180 - FlareMS21956 Body - Cluster Fitting Three Way - FlareMS2438
19、7 Bolt, Fluid Passage, Precision TypeMS24388 Tee, Flared Tube, Internal Thread on Side, Precision TypeMS24389 Tee, Tube, Internal Thread on Run, Precision TypeMS24398 Adapter, Straight, Tube to Boss Precision TypeMS24487 Nipple, Tube, 37 to 45 SeatCopyright SAE International Provided by IHS under li
20、cense with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE AS4875/1 - 4 -6.3 (Continued):NAS552 Elbow - Universal 90 DegNAS553 Elbow - Universal 15 DegNAS554 Elbow - Universal 45 DegNAS555 Tee - UniversalPREPARED BY SAE SUBCOMMITTEE G-3B, AEROSPACE FITTINGS OFCOMMITTEE G-3, AEROSPACE COUPLINGS, FITTINGS, HOSE, AND TUBING ASSEMBLIESCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
