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 therefro
2、m, 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.
3、A.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (412) 776-0790 SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001AEROSPACE STANDARDAS4875/3Issued 1997-11Reaffirmed 2001-12Fittings, Straight Thread Port or Flanged to 24 Cone Flareless, Fluid Connection1. SCOPE:1.1 Sc
4、ope:This SAE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both straight thread port or flanged connections and 24 cone flareless connections for use in all types of fluid systems.1.2 Classification:Fittings shall be furnished in the types and styles designated
5、 by the applicable MS, AS and other engineering standard drawings. This specification is the same as MIL-F-18280 as applicable to straight thread port or flanged to 24 cone flareless tube fittings except for updated materials and process specifications and industry coordinated general improvements.
6、It is intended to serve as a procurement specification for the fittings described herein and in Section 6.2. APPLICABLE DOCUMENTS:The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other pu
7、blications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specif
8、ic 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 AS4875/3- 2 -2.1 SAE Publications:Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AS930 Fitting
9、End, Straight Thread, Boss Connection, Design StandardAS4375 Fitting End, Flareless, Design StandardAS4377 Fitting End, Bulkhead, Flareless, Design StandardAS4444 Fittings, 24 Cone Flareless, Fluid Connection, 5000 psiAS4875 Fittings, Straight Thread Boss and Flanged, Fluid Connection2.2 U.S. Govern
10、ment Publications:Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.MS33649 Bosses, Fluid Connection Internal Straight ThreadMS33514 Fitting End, Standard Dimensions for Tube Connection and Gasket SealMS33515 Fitting End, Standard Dimensi
11、ons for Bulkhead 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 port connections and the 24 cone ends of fittings shall be in accordance wi
12、th MS33649, MS33514, MS33515, AS930, AS4375 or AS4377 as applicable. The 24 cone flareless fitting ends shall meet the requirements of AS4444 as applicable.3.3 Finish:See AS4875.3.4 Identification of Product:See AS4875.3.5 Workmanship:See AS4875 for the straight thread port and flanged ends and fitt
13、ing bodies and AS4444 for the 24 cone flareless ends.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE AS4875/3- 3 -4. QUALITY ASSURANCE PROVISIONS:See AS4875 for the straight thread port and flanged
14、 ends and fitting bodies and AS4444 for the 24 cone flareless ends.5. PREPARATION FOR DELIVERY:See AS4875.6. NOTES:6.1 Intended Use:See AS4875.6.2 Assembly:See AS4875 for straight thread port and flanged ends. For 24 cone fitting ends, see 6.3 of AS4444.6.3 Superseding Information:This document is i
15、ntended to be suitable for designation as a procurement specification for straight thread port and flanged fittings that also have a 24 cone flareless fitting end. The document is intended to be a replacement as a primary procurement specification for the following fittings that have MIL-F-18280 des
16、ignated as a procurement specification:AS931 Fitting, Adapter, Union, Flareless to BossAS932 Fitting, Adapter, Reducer/Expander, Flareless to BossAS1031 Tee, Standard and Reducer, Bulkhead on Run, Internal Port on Side, Flared TubeAS1032 Tee, Standard and Reducer, Bulkhead and Internal Port on Run,
17、Flared TubeAS1941 Fitting End, Straight Thread, High Pressure, Boss Connection, Design StandardMS21910 Tee, Bulkhead, Flareless Tube, Internal Thread on SideMS21911 Tee, Bulkhead, Flareless Tube, Internal Thread on RunMS21915 Adapter, Straight, Tube to BossMS21938 Bolt, Cluster Fitting, Single Port,
18、 FlarelessMS21939 Bolt, Cluster Fitting, Single Port, Through, FlarelessMS21940 Bolt, Cluster Fitting, Double Port, FlarelessMS21941 Bolt, Cluster Fitting, Double Port, Through, FlarelessMS21942 Body, Cluster Fitting, One Way, FlarelessMS21943 Body, Cluster Fitting, Two Way, 90, FlarelessMS21944 Bod
19、y, Cluster Fitting, Two Way, 180, FlarelessMS21945 Body, Cluster Fitting, Three-Way, FlarelessNAS1236 Bolt - Universal, Tube End - FlarelessNAS1237 Elbow - Universal 90 - FlarelessCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted
20、without license from IHS-,-SAE AS4875/3- 4 -6.3 (Continued):NAS1238 Elbow - Universal 75 - FlarelessNAS1239 Elbow - Universal 45 - FlarelessNAS1240 Tee - Universal - Flareless6.4 Key Word:Aerospace, fitting, flareless, port, flangePREPARED BY SAE SUBCOMMITTEE G-3B, AEROSPACE FITTINGS OF COMMITTEE 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-,-
