1、 AEROSPACE STANDARD FERRULE, COUPLING, FLEXIBLE, VARIABLE CAVITY,THREADED, FERRULE TUBE END, METRIC MA2256Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechani
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3、94-01 REAFFIRMED 2015-04THIRD ANGLE PROJECTION CUSTODIAN: G-3/G-3A REV.A FEDERAL SUPPLY CLASS 4730MA2256 SHEET 1 OF 3 REV. A PROCUREMENT SPECIFICATION: /3/ MA2250SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences.
4、Theuse ofthisreport is entirelyvoluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized,
5、 orcancelled. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/MA2256A RATIONALE MA2256A HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. FIGURE 1 - FERRULE DETAIL
6、AEROSPACE STANDARD MA2256 SHEET 2 OF 3 REV. A FERRULE, COUPLING, FLEXIBLE, VARIABLE CAVITY,THREADED, FERRULE TUBE END, METRIC TABLE 1 - DIMENSIONSAEROSPACE STANDARD MA2256 SHEET 3 OF 3 REV. A FERRULE, COUPLING, FLEXIBLE, VARIABLE CAVITY,THREADED, FERRULE TUBE END, METRIC NOTES:/1/ MATERIAL: CODE LET
7、TER D: ALUMINUM ALLOY 2024-T6 IN ACCORDANCE WITH QQ-A-225/6.2. FINISH: ANODIC COATING IN ACCORDANCE WITH MIL-A-8625, TYPE II, CLASS 2 (CODE D). COLOR GOLD./3/ THIS PART SHALL BE QUALIFIED IN A COMPLETE COUPLING OR HALF COUPLING ASSEMBLY IN ACCORDANCE WITH THE PROCUREMENT SPECIFICATION. USERS OF THIS
8、 STANDARD ARE ADVISED TO CONTROL SOURCE APPROVAL(S) BY STANDARD PAGE SUPPLEMENT SHEET OR SIMILAR MEANS./4/ MARKING: FERRULES SHALL BE INK STAMPED, 1.58 mm OR LARGER LETTERS, WITH THE FOLLOWING MINIMUM INFORMATION: MANUFACTURERS NAME, TRADEMARK OR CAGE CODE NUMBER, COMPLETE “MA” NUMBER, AND DATE OF M
9、ANUFACTURE IN QUARTERS (1Q90 = FIRST QUARTER 1990)./5/ RADIUS IS FROM 0.13 TO 0.28 mm FOR SIZES -12 THROUGH -16./6/ RADIUS IS FROM 0.33 TO 0.48 mm FOR SIZES -12 THROUGH -16./7/ SPECIFIC DIMENSIONS AND TOLERANCES ARE SPECIFIED AND CONTROLLED BY THE MANUFACTURER. THE MANUFACTURER IS RESPONSIBLE TO ENS
10、URE COMPATIBILITY WITH THE ASSEMBLY AND COMPLIANCE WITH THE REQUIREMENTS OF THE PROCUREMENT SPECIFICATION.8. TUBING SIZES ARE PER ISO 2964-1974 EXCEPT AS NOTED./9/ THESE FERRULES FIT COUPLING ASSEMBLIES THAT USE NONSTANDARD TUBING DIAMETERS.10. DIMENSIONS IN MILLIMETERS. UNLESS OTHERWISE SPECIFIED,
11、TOLERANCE: LINEAR DIMENSIONS 0.25, ANGLES 2 UNLESS OTHERWISE SPECIFIED./11/ TOLERANCE 0.08 mm FOR SIZES -12 AND -16, AND 0.13 mm FOR SIZES -18 THROUGH -140./12/ TOLERANCE +0.13/-0.00 mm FOR SIZES -12 THROUGH -100, AND +0.152/0.000 mm FOR SIZES -114 THROUGH -140./13/ TOLERANCE +0.00/-0.05 mm FOR SIZE
12、S -12 THROUGH -100, AND +0.000/-0.102 mm FOR SIZES -114 THROUGH -140./14/ SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36; REQUIREMENTS PER ANSI B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 5 m Ra.15. BREAK EDGES 0.1 TO 0.4 UNLESS OTHERWISE SPECIFIED.16. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M.17. EXAMPLE OF PART NUMBER:
