AIA/NAS 1839-2011 pdf download INSERT ASSEMBLY, THREADED METAL, HEAVY DUTY SELF-LOCKING, NON SELF-LOCKING
MATERIAL:KEYRING
410 CRES(UNS S41000) PER AMS5504 OR AMS5613.
OR 420 (UNS S42000) PER AMS5506 OR AMS5621.
INSERT
4130 STEEL(UNS G41300) PER MH-S-6758 AMS-S-6758OR 4140 STEEL(UNS G41400) PER ML-S-5626 AMS6349 OR AMS6382HT 160.000-180.000 PSI PER AMS2759.
303 CRES STEEL (UNS S30300) PER ASTM A 81/A 581M,CONDITION BFOR INSERTS 500 EXTERNAL DIAMETER AND SMALLER AND ASTM A 582/A 582MCONDITION A.FOR INSERTS LARGER THAN .500 EXTERNAL DIAMETER
A286 CRES STEEL (UNS S66286) PER AMS5731,HT 160,000 PSI MINIMUM.
FINISH:
LUBRICANT:
INSERT AND KEYRING:410,420,303 AND A286 CRES,PASSIVATE PER AMS2700,METHOD 1,CLASS 4.4130 OR 4140 STEEL,CADMIUM PLATE PER AMS-QQ-P-416,TYPE II,CLASS 2SILVER PLATE PER AMS2411 (0.0002 TO 0.005) WHEN CODED.KEYRING TO HAVE SAME FINISH AS INSERT.
DRY FILM LUBRICANT PER AS5272 ON SELF-LOCKING INSERT ASSEMBLIES EXCEPT WHEN SILVERPLATED.
CODE: NO LETTER BEFORE THE DASH NUMBER DESIGNATES 41 30 OR 41 40 STEEL.
ADD “C” IN PLACE OF “-” TO DESIGNATE 303 CRES.
ADD “CA” IN PLACE OF “-” TO DESIGNATE A286 CRES.
ADD LETTER “L” AFTER THE DASH NUMBER TO DESIGNATE A SELF-LOCKING INSERT.
ADD LETTER “S” AFTER THE DASH NUMBER TO DESIGNATE SILVER PLATE.
EXAMPLE OF PART NUMBERS:
NAS1 839-3 = INSERT ASSEMBLY, HEAVY DUTY, STEEL, .1 900-32 INTERNAL THREAD,
NON SELF-LOCKING, CADMIUM PLATE.
NAS1 839-3L = INSERT ASSEMBLY, HEAVY DUTY, STEEL, .1 900-32 INTERNAL THREAD,
SELF-LOCKING, CADMIUM PLATE AND DRY FILM LUBRICANT.
NAS1 839C3 = INSERT ASSEMBLY, HEAVY DUTY, 303 CRES, .1 900-32 INTERNAL THREAD,
NON SELF-LOCKING, PASSIVATED.
NAS1 839CA3 = INSERT ASSEMBLY, HEAVY DUTY, A286 CRES, .1 900-32 INTERNAL THREAD,
NON SELF-LOCKING, PASSIVATED.
NAS1 839CA3LS = INSERT ASSEMBLY, HEAVY DUTY, A286 CRES, .1 900-32 INTERNAL THREAD,
SELF-LOCKING, PASSIVATED, SILVER PLATE.
NOTES: /1 / ALL INTERNAL THREADS SHALL CONFORM TO THE REQUIREMENTS OF AS8879 EXCEPT AS NOTED IN NASM25027.
(2) LOCKING TORQUE PER NASM25027. (SELF LOCKING INSERTS ONLY).
/3/ ALL EXTERNAL THREADS SHALL CONFORM TO THE REQUIREMENTS OF AS8879.
/4/ INTERNAL AND EXTERNAL THREADS SHALL BE CONCENTRIC WITHIN 0.005 FIM.
(5) THIS STANDARD TAKES PRECEDENCE OVER DOCUMENTS REFERENCED HEREIN.
(6) UNLESS OTHERWISE SPECIFIED, PART INVENTORY MANUFACTURED TO PREVIOUS REVISIONS OF THE APPLICABLE DRAWING OR SPECIFICATION MAY BE PROCURED AND USED UNTIL STOCK IS DEPLETED.
(7) REFERENCED DOCUMENTS SHALL BE THE ISSUE IN EFFECT ON DATE OF INVITATIONS FOR BID.
(8) DIMENSIONS IN INCHES AND APPLY AFTER FINISH AND PRIOR TO THE APPLICATION OF LUBRICATION UNLESS OTHERWISE SPECIFIED.
(9) REMOVE ALL BURRS AND SHARP EDGES.
(1 0) DIMENSIONING AND TOLERANCING PER ANSI Y1 4.5M-1 982.

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