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Part Number

Part Number:
NSN:
NIIN:
Item Name:
BOLT , SQUARE NECK

Definition:

A HEADED EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, WITH A SQUARE NECK DIRECTLY BENEATH THE HEAD.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Federal Supply Class

Title

BOLTS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ZZZT NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 1 CLASS AND A000 STYLE
AASU HEAD HEIGHT 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
AGQB NECK LENGTH 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
CQBC MINIMUM TENSILE STRENGTH 60000 POUNDS PER SQUARE INCH
AASK HEAD STYLE BUTTON
MATT MATERIAL STEEL OVERALL
AASB FASTENER LENGTH 3.170 INCHES MINIMUM AND 3.310 INCHES MAXIMUM
AASA THREAD LENGTH 1.250 INCHES MINIMUM
CQFM HARDNESS RATING 95.0 ROCKWELL B MAXIMUM OVERALL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
CWXQ NECK WIDTH 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL OR ZINC OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416 TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OVERALL OR QQ-Z-325 TY2 CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
AASL HEAD DIAMETER 1.032 INCHES MINIMUM AND 1.094 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 13

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