5360-00-150-4891 SPRING,HELICAL,COMPRESSION Index 5310-00-150-4936 WASHER,FLAT

National Stock Number:
5306-00-150-4931

Federal Supply Class:
5306

National Item Identification Number:
001504931

Description:
BOLT,CLOSE TOLERANCE

Detail:
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.


Manufacturer Information:
11797A05U01159563REID PRODUCTS INC.
68484-5A1156878SPS TECHNOLOGIES, LLC
68484-5A1180539SPS TECHNOLOGIES, LLC
AIC2263A05U01106725SPS TECHNOLOGIES, LLC
BM3200-5A01117446HUCK INTERNATIONAL, INC
BM3200-5A01197928HUCK INTL INC
PBF1041A5U01127624SPS TECHNOLOGIES LLC
STSBG000A05U01198897LOCKHEED MARTIN CORP
VAL23611-5D01106710VALLEY-TODECO, INC.
VS2978A05U01106950HOWMET GLOBAL FASTENING SYSTEMS INC
VS2978A05U01192215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
EXTENDED WASHER THICKNESS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
FASTENER LENGTH1.022 INCHES MINIMUM AND 1.069 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH0.687 INCHES NOMINAL
HEAD HEIGHT0.187 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONH-11,STS BS000,FSCM 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH BETWEEN FLATS0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSTS BS 000,LOCKHEED-GEORGIA CO MFR REF ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTNICKEL AND CADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.335 INCHES MINIMUM AND 0.382 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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