AIA/NAS 1288-2011 pdf download NUT, HEX AND WASHER, SELF-ALIGNING, SELF-LOCKING
MATERIAL:
800 °F ALLOY STEEL (UNS K14675) PER AMS6304 HEAT TREATED.
1 ,400 °F M252 HEAT RESISTANT NICKEL BASE ALLOY PER AMS5756.
HEAT TREATMENT:
AMS6304 ALLOY STEEL – 41 -48 HRC.
M252 NICKEL BASE ALLOY – 36-42 HRC.
FINISH:
AMS6304: NICKEL-ZINC ALLOY PLATE AND HYDROGEN EMBRITTLEMENT RELIEF PER AMS241 7.
M252: SILVERPLATE PER AMS241 0.
CODE:
ADD“W”AFTER DASH NUMBER FOR WASHER
EXAMPLES OF PART NUMBERS:
USE TOGETHER:NUT.ALLOY STEEL10-32 THREAD SIZENICKELZINC ALLOY PLATE 800FNAS1288-3NAS1288-3W = WASHER,ALLOY STEEL10-32 THREAD SIZENICKEL-ZINC ALLOY PLATE 800 F
USE TOGETHER:NAS1288C3NUT,M252,10-32 THREAD SIZE,SILVER PLATE,1,400 FNAS1288C3W = WASHER,M252,10-32 THREAD SIZE,SILVER PLATE1,400 F.
NOTES:
MINIMUM “H”LIMITED ONLY BY STRENGTH REQUIREMENTS OF NASM25027 AND NASM7873
WRENCHING HEIGHT MUST BE ADEQUATE TO MEET NASM25027 WRENCHING TORQUE REQUIREMENTS.
TOTAL COUNTERBORE DEPTH INCLUDES BOTH NUT AND WASHER.
PERFORMANCE: 800 F NASM25027,1,400 PER NASM7873 TO 1,200 F.REQUIREMENTS TO BE METUP TO 5°MISALIGNMENT.
THREADS IN ACCORDANCE WIH AS8879 BEFORE LUBRICATION. THREADS IN ACCORDANCE WITHMIL-S-7742 ARE ACCEPTABLE UNTIL 31 DECEMBER 1969.
MAXIMUM TEMPERATURE LIMITATIONS:
NAS1288-3 AND -3W: 800 ; USE WITH NAS1292J THRU NAS1296J OR NAS1322J THRU NAS1326J PINS
ONLY.
NAS1288C3 AND C3W: 1,400 F; USE WITH NAS1292R THRU NAS1296R OR NAS1322R THRU NAS1326R
PINS ONLY.
ON OVERSIZE PINS,USE WASHERS TO PREVENT SHANK NUT INTERFERENCE.
DIMENSIONS IN INCHES AND APPLY AFTER FINISH UNLESS OTHERWISE SPECIFIED
THIS STANDARD TAKES PRECEDENCE OVER DOCUMENTS REFERENCED HEREIN.
UNLESS OTHERWISE SPECIFIED PART INVENTORY MANUFACTURED TO PREVIOUS REVISIONS OF THEAPPLICABLE DRAWING OR SPECIFICATION MAY BE PROCURED AND USED UNTIL STOCK IS DEPLETED.
UNLESS OTHERWISE SPECIFIED HEREIN, REFERENCED DOCUMENTS SHALL BE THE ISSUE IN EFFECT ONDATE OF MANUFACTURE. HOWEVER, EXISTING MATERIAL INVENTORY CERTIFIED TO A PREVIOUSREVISION OF THE APPLICABLE MATERIAL SPECIFICATION(S) IS ACCEPTABLE FOR USE UNTILDEPLETION.
(11)DIMENSIONING AND TOLERANCING PER ANSI Y14.5M-1982
AIA/NAS 1288-2011 pdf download
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