5306-01-068-1303, BOLT,RIBBED SHOULDER

National Stock Number:
5306-01-068-1303

Federal Supply Class:
5306

National Item Identification Number:
010681303

Description:
BOLT,RIBBED SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. It has a series of longitudinal ribs, splines or serrations on all or a part of the shoulder. The minor diameter of the ribs must be greater than the major diameter of the threads. See also BOLT, RIBBED NECK.

Manufacturer Information:

12274571	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
5306010681303	A00AM	E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.875 INCHES
THREAD QUANTITY PER INCH	14
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.200 INCHES MINIMUM AND
	1.300 INCHES MAXIMUM
FASTENER LENGTH	3.541 INCHES MINIMUM AND
	3.601 INCHES MAXIMUM
MATERIAL	STEEL COMP 8637 OR
	STEEL COMP 8640 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR
	ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	40.0 ROCKWELL C MINIMUM AND
	46.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	1.310 INCHES NOMINAL
HEAD HEIGHT	0.310 INCHES NOMINAL
SHOULDER SHAPE	RIBBED FIRST SHOULDER
SHOULDER DIAMETER	0.995 INCHES MINIMUM AND
	1.005 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	1.160 INCHES NOMINAL FIRST SHOULDER
RIB QUANTITY	28
RIB MAJOR DIAMETER	0.995 INCHES MINIMUM AND
	1.005 INCHES MAXIMUM
RIB LENGTH	1.040 INCHES MINIMUM AND
	1.100 INCHES MAXIMUM
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS	0.060 INCHES MINIMUM AND
	0.120 INCHES MAXIMUM
RIB MINOR DIAMETER	0.880 INCHES MINIMUM AND
	0.930 INCHES MAXIMUM

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