AIA/NAS 9313-2011 pdf download RIVET, SOLID, CLOSE TOLERANCE, 1 00° FLUSH HEAD, ALUMINUM ALLOY, TITANIUM-COLUMBIUM ALLOY
MATERIAL CODE:
AD = ALUMINUM ALLOY—21 1 7-T4 (UNS A921 1 7) PER QQ-A-430
B = ALUMINUM ALLOY—5056-H32 (UNS A95056) PER QQ-A-430
D = ALUMINUM ALLOY—201 7-T4 (UNS A9201 7) PER QQ-A-430
DD = ALUMINUM ALLOY—2024-T4 (UNS A92024) PER QQ-A-430
KE = ALUMINUM ALLOY—7050-T73 (UNS A97050) PER QQ-A-430
T = TITANIUM-COLUMBIUM—45Cb (UNS R58450) PER AMS4982
FINISH CODE: (FOR ALUMINUM ALLOY)
A = ANODIZE PER MIL-A-8625, TYPE II, CLASS 1 , CLEAR.
D = ANODIZE PER MIL-A-8625, TYPE II, CLASS 1 (DICHROMATE SEAL).
S = CHEM-FILM PER MIL-DTL-5541 , CLASS 1 A, CLEAR. NOT PERMITTED FOR DD (2024) ALLOY.
NO CODE= CHEM-FILM PER MIL-DTL-5541 , CLASS 1 A, GOLD/YELLOW. NOT PERMITTED FOR DD (2024) ALLOY.
EXAMPLE OF PART NUMBER:
NAS 9 3 1 3 AD 5- 6 A
FINISH CODE
LENGTH IN .0625 INCREMENTS /4/
DIAMETER IN .031 2 INCREMENTS
MATERIAL CODE
BASIC PART NUMBER
NOTES:
(1 ) .001 SHANK DIAMETER INCREASE PERMISSIBLE WITHIN .1 00 OF BASE OF HEAD.
(2) RIVETS SHALL BE FURNISHED WITH RADIUSED (OR CHAMFERED) ENDS WITH A RADIUS TO THE “T” DIMENSION,
OR A 20º CHAMFER TO THE “S” DIMENSION, EXCEPT WHEN LENGTH EXCEEDS 7 TIMES THE DIAMETER, THE RIVET SHALL BE SQUARE ENDED ONLY.
(3) HEAD SURFACE PERPENDICULAR RELATIVE TO AXIS OF RIVET: 0º-30′ MAX.
/4/ ADDITIONAL .031 2 INCREMENT MAY BE OBTAINED BY ADDING “-5” AFTER LAST DASH NUMBER OR “5” (NO DASH) AFTER THE FINISH CODE (E.G: NAS931 3AD5-6-5 OR NAS931 3AD5-6A5).
/5/ MANUFACTURER’S ID IS REQUIRED ON RIVET HEADS FOR -4 DIA AND LARGER. MANUFACTURER’S SYMBOL ON HEAD, DEPRESSED .01 0 MAX. NO MANUFACTURER’S ID ON -2 DIA AND -3 DIA.
/6/ OUT OF ROUNDNESS NOT TO EXCEED .003 WITHIN A LOT.
/7/ KEY DIMENSION TO ACHIEVE THE INSTALLED RIVET FLUSHNESS REQUIREMENTS WITHOUT “SHAVING”.
(8) “(Ø A)” HEAD DIMENSION IS TO THEORETICAL SHARP CORNERS AS MEASURED BY PROJECTION.