SAE AS 21939-2000 pdf download BOLT, CLUSTER FITTING, SINGLE PORT, THROUGH, FLARELESS
REQUIREMENTS:
MATERIAL: ALUMINUM ALLOY – BARS.SEE PROCUREMENT SPECIFICATION.
FINISH:SEE PROCUREMENT SPECIFICATION.2.
SURFACE FINISH IN ACCORDANCE WITH ANSI B46.1UNLESS OTHERWISE SPECIFIED，ALL OUTSIDE MACHINED SURFACES SHALL BE125 MICROINCHES Ra AND ALL INSIDE SURFACES SHALL BE 250 MICROINCHES Ra
NOTES:
FITTINGS SHALL BE FREE FROM ALL HANGING BURRS AND SLIVERS
2.DIMENSIONS ARE IN INCHES.UNLESS OTHERWISE SPECIFIED,TOLERANCES: DECIMALS .010. ANGLES+1/2°
3PART NUMBERS:
NO CODE LETTER IN PART NUMBER FOR ALUMINUM ALLOY (2024).
ADD W IN PLACE OF DASH FOR ALUMINUM ALLOY (7075).
EXAMPLES OF PART NUMBERS
MS21939-8L4 – BOLT, 1/2 TO 1/4 TUBING, LOW FLOW,ALUMINUM ALLOY (2024).MS21939W8L4 – BOLT, 1/2 TO 1/4 TUBING,LOW FLOW,ALUMINUM ALLOY (7075)
4.INSTALLATION IN ACCORDANCE WITH MS21931.
5IN THE EVENT OF A CONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES CITEDHEREIN,THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE
REFERENCED GOVERNMENT OR NON-GOVERNMENT) DOCUMENTS OF THE ISSUE LISTED IN THAT ISSUEOF THE DEPARTMENT OF DEFENSE NDEX OF SPECIFICATIONS AND STANDARDS (DoDISS) SPECIFIED INTHE SOLICITATION FORM A PART OF THIS STANDARD TO THE EXTENT SPECIFIED HEREIN.
INACTIVE FOR NEW DESIGN AFTER 31 DEC.1989

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