NSN 5306-00-149-8993

Part Details | CLOSE TOLERANCE BOLT

5306-00-149-8993 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: VS2978A05U010, 684845A10, 68484-5A10, BM32005A010, BM3200-5A010, BM32005A010, BM3200-5A010, STSBG000A05U010, 11797A05U010, 684845A10, 68484-5A10, AIC2263A05U010, PBF1041A5U010, VAL236115D010, VAL23611-5D010, 5306-00-149-8993, 00-149-8993, 5306001498993, 001498993

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 08, 197100-149-899327851 ( BOLT, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

DOUBLE HEXAGON

Cross Reference | NSN 5306-00-149-8993
Part Number Cage Code Manufacturer
VS2978A05U01092215ARCONIC GLOBAL FASTENERS & RINGS,INC.
68484-5A1080593H KRAMER & CO.
BM3200-5A01017446HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND
BM3200-5A01097928HUCK INTL INC
STSBG000A05U01098897LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
11797A05U01059563REID PRODUCTS INC.DBA REID PRODUCTS
68484-5A1056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
AIC2263A05U01006725SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES
PBF1041A5U01027624SPS TECHNOLOGIES, LLCDBA PB FASTENERS
VAL23611-5D01006710VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND
Technical Data | NSN 5306-00-149-8993
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.335 INCHES MINIMUM AND 0.382 INCHES MAXIMUM
FASTENER LENGTH0.960 INCHES MINIMUM AND 1.007 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
HEAD STYLE DOUBLE HEXAGON
HEAD HEIGHT0.187 INCHES NOMINAL
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
GRIP LENGTH0.625 INCHES NOMINAL
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM