Product Details | EXTERNALLY RELIEVED BODY BOLT

5306-00-637-0388 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.

Part Alternates: BL722976, 7609314, 5306-00-637-0388, 00-637-0388, 5306006370388, 006370388

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-637-0388

Drawings & Photos | NSN 5306-00-637-0388


Cross Reference | NSN 5306-00-637-0388

Part Number Cage Code Manufacturer
7609314 19200 US ARMY ARDEC RDECOM
BL722976 64959 AMERICAN TELEPHONE AND TELEGRAPH CO
BL722976 70408 AT AND T CORP

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Technical Data | NSN 5306-00-637-0388

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.375 INCHES
THREAD QUANTITY PER INCH 16
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.688 INCHES MINIMUM
FASTENER LENGTH 1.750 INCHES NOMINAL
MATERIAL STEEL COMP 1117 OVERALL
SURFACE TREATMENT ZINC OR PHOSPHATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION 3064 FSCM 54567 MFR REF 1ST TREATMENT RESPONSE OR 3066 FSCM 54567 MFR REF 2ND TREATMENT RESPONSE OVERALL
HEAD STYLE C15 SQUARE EXTENDED WASHER
HEAD HEIGHT 0.750 INCHES NOMINAL
WIDTH BETWEEN FLATS 0.497 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
EXTENDED WASHER DIAMETER 0.750 INCHES NOMINAL
EXTENDED WASHER THICKNESS 0.125 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
FIRST DIAMETER FROM HEAD 0.266 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 1.062 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5306-00-637-0388

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 573 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable