5365-01-387-3767 SPACER,PLATE Index 4010-01-387-3769 LINK,CHAIN,CONNECTING

National Stock Number:
5305-01-387-3768

Federal Supply Class:
5305

National Item Identification Number:
013873768

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
03A173-5-621W025NORTHROP GRUMMAN SYSTEMS CORP
03A173-5-6276823NORTHROP GRUMMAN SYSTEMS CORPORATION
AIC1651-5-6206725SPS TECHNOLOGIES, LLC
E008-5-6217446HUCK INTERNATIONAL, INC
BF0015HC3-5-6262384LFC INDUSTRIES INC.
123742-5-6280539SPS TECHNOLOGIES, LLC
SC3103-5-6206950HOWMET GLOBAL FASTENING SYSTEMS INC
SLB216-5-6216258SPACE-LOK, INC.
PBF1416-5-6227624SPS TECHNOLOGIES LLC
HR239-5-6273197HI-SHEAR CORPORATION
E008-5-6297928HUCK INTL INC
HR239-5-62L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.469 INCHES NOMINAL
FASTENER LENGTH4.329 INCHES MINIMUM AND
4.359 INCHES MAXIMUM
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.577 INCHES MINIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND
101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLEOFFSET CRUCIFORM (TORQUE SET)
GRIP LENGTH3.865 INCHES MINIMUM AND
3.885 INCHES MAXIMUM
GRIP DIAMETER0.3110 INCHES MINIMUM AND
0.3120 INCHES MAXIMUM


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