NSN 5306-00-938-3974

Part Details | CLOSE TOLERANCE BOLT

5306-00-938-3974 An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.

Alternate Parts: VS25218F36, VS2521-8F36, VS25218F36, VS2521-8F36, BM17020836A, BM17020-8-36A, BM55132836, BM55132-8-36, BM17020836A, BM17020-8-36A, C081836, C081-8-36, GB511GG836A, GB511GG8-36A, GB511B836, GB511B8-36, 92147836, 92147-8-36, EWSB228A36, EWSB22-8A36, EWSB228A36, EWSB22-8A36, AIC516B836, AIC516B8-36, PBF1479836A, PBF1479-8-36A, VCD0020836, VCD0020-8-36, 5306-00-938-3974, 00-938-3974, 5306009383974, 009383974

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 15, 196700-938-397427851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-938-3974
Part Number Cage Code Manufacturer
VS2521-8F3692215ARCONIC GLOBAL FASTENERS & RINGS,INC.
VS2521-8F3606950ARCONIC GLOBAL FASTENERS & RINGS,INC.
BM17020-8-36A17446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM55132-8-3697928HUCK INTL INC
BM17020-8-36A97928HUCK INTL INC
C081-8-3681755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
GB511GG8-36A26512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
GB511B8-3626512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
92147-8-3656878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
EWSB22-8A3656878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
EWSB22-8A3680539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
AIC516B8-3606725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1479-8-36A27624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VCD0020-8-3606710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-00-938-3974
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.516 INCHES NOMINAL
FASTENER LENGTH2.751 INCHES MINIMUM AND 2.781 INCHES MAXIMUM
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.741 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
GRIP LENGTH2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM
GRIP DIAMETER0.4982 INCHES MINIMUM AND 0.4991 INCHES MAXIMUM