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Part Number

Part Number:
NSN:
NIIN:
Item Name:
BOLT , SHOULDER

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO. 10 (0.190 IN.) (5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WITH A THREAD DIAMETER SMALLER THAN NO. 10 (0.190 IN.) (5 MM) AND THOSE ITEMS WITH AN INSERTED DRIVE HEAD, USE SCREW, SHOULDER. FOR ITEMS WHICH ARE NO. 10 (0.190 IN.) (5 MM) OR LARGER IN SIZE AND ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE BOLT, EXTERNALLY RELIEVED BODY. EXCLUDES THUMBSCREW.

CAGE Information

Code Company
19207 U S ARMY TANK AUTOMOTIVE COMMAND AMS

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATB WIDTH BETWEEN FLATS 0.875 INCHES NOMINAL
SFTT SURFACE TREATMENT ZINC OVERALL
CRZS DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER 1.140 INCHES NOMINAL FIRST HOLE
CWYB SHOULDER SHAPE ROUND FIRST SHOULDER
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
AASB FASTENER LENGTH 1.312 INCHES NOMINAL
AASA THREAD LENGTH 0.687 INCHES MINIMUM
FEAT SPECIAL FEATURES 3/64 IN. RADIUS UNDER-CUT AT SHOULDER 1/32 IN. BY 45 DEG CHAMFER AT THD END
AASU HEAD HEIGHT 0.469 INCHES NOMINAL
AAWB SHANK UNTHREADED HOLE DIAMETER 0.107 INCHES NOMINAL FIRST HOLE
AATN SHOULDER DIAMETER 0.6230 INCHES MINIMUM FIRST SHOULDER AND 0.6250 INCHES MAXIMUM FIRST SHOULDER
THSD THREAD SERIES DESIGNATOR UNF
AAJD THREAD CLASS 2A
AASK HEAD STYLE HEXAGON
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-Z-325,TY 1,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-631 FED SPEC ALL MATERIAL RESPONSES OVERALL
CMLP THREAD QUANTITY PER INCH 20
AATX SHOULDER LENGTH 0.625 INCHES NOMINAL FIRST SHOULDER

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