5306-01-026-5102, BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-026-5102

Federal Supply Class:
5306

National Item Identification Number:
010265102

Description:
BOLT,INTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.

Manufacturer Information:

1292033-115	98897	LOCKHEED MARTIN CORP
ATT17400	77445	RTX CORPORATION

Techincal Specification:

CONCENTRIC HOLE DIAMETER	0.252 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
FASTENER LENGTH	1.251 INCHES MINIMUM AND 1.281 INCHES MAXIMUM
HEAD HEIGHT	0.188 INCHES MINIMUM AND 0.203 INCHES MAXIMUM
HEAD STYLE	DISHED HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SPECIAL FEATURES	COLOR WHITE FED STD 595 NO. 17875
WIDTH BETWEEN FLATS	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
STYLE DESIGNATOR	CONCENTRIC HOLE UNTHREADED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	595 NO. 17875 FED STD SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENT	PAINT HEAD
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.366 INCHES MINIMUM AND 0.416 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNJF
THREAD QUANTITY PER INCH	24

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