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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
53711 NAVAL SEA SYSTEMS COMMAND

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATN SHOULDER DIAMETER 1.622 INCHES MINIMUM FIRST SHOULDER AND 1.633 INCHES MAXIMUM FIRST SHOULDER
AASB FASTENER LENGTH 3.125 INCHES NOMINAL
AASK HEAD STYLE PAN NO. 2
CWYB SHOULDER SHAPE ROUND FIRST SHOULDER
MDCL MATERIAL DOCUMENT AND CLASSIFICATION ASTMA193 FED SPEC 2ND MATERIAL RESPONSE OVERALL
AAJF THREAD DIRECTION RIGHT-HAND
AASA THREAD LENGTH 1.360 INCHES NOMINAL
MATT MATERIAL STEEL COMP 4142 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4145 OVERALL
AASL HEAD DIAMETER 2.625 INCHES NOMINAL
AASU HEAD HEIGHT 0.875 INCHES NOMINAL
AATX SHOULDER LENGTH 1.765 INCHES NOMINAL FIRST SHOULDER
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AHYM NOMINAL THREAD DIAMETER 1.375 INCHES
CMLP THREAD QUANTITY PER INCH 6

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