5365-01-221-9795 SPACER,RING Index 5365-01-221-9797 SPACER,RING

National Stock Number:
5305-01-221-9796

Federal Supply Class:
5305

National Item Identification Number:
012219796

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:
1276-23-53344114BAE SYSTEMS LAND & ARMAMENTS L.P.
1276-23-53353711NAVAL SEA SYSTEMS COMMAND
5305PL09564549009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
552102753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH73.0 MILLIMETERS NOMINAL
GRIP DIAMETER11.82 MILLIMETERS MINIMUM AND 12.00 MILLIMETERS MAXIMUM
GRIP LENGTH33.0 MILLIMETERS NOMINAL
HARDNESS RATING32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM
HEAD HEIGHT12.0 MILLIMETERS NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPELLET THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1013 OVERALL OR STEEL COMP 1015 OVERALL OR STEEL COMP 1016 OVERALL OR STEEL COMP 1017 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL OR STEEL COMP 1023 OVERALL OR STEEL COMP 1524 OVERALL OR STEEL COMP 1025 OVERALL OR STEEL COMP 1527 OVERALL OR STEEL COMP 1029 OVERALL OR STEEL COMP 1030 OVERALL OR STEEL COMP 1033 OVERALL OR STEEL COMP 1034 OVERALL OR STEEL COMP 1035 OVERALL OR STEEL COMP 1536 OVERALL OR STEEL COMP 1037 OVERALL OR STEEL COMP 1038 OVERALL OR STEEL COMP 1039 OVERALL OR STEEL COMP 1040 OVERALL OR STEEL COMP 1541 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER12.0 MILLIMETERS
WIDTH ACROSS FLATS10.04 MILLIMETERS MINIMUM AND 10.29 MILLIMETERS MAXIMUM
SURFACE FINISH3.0 MICROMETERS GRIP
SURFACE FINISH6.0 MICROMETERS THREADS
SURFACE FINISH6.0 MICROMETERS BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH28.0 MILLIMETERS MINIMUM AND 31.0 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.75


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