5310-01-226-9489 WASHER,FLAT Index 5310-01-226-9491 WASHER,LOCK

National Stock Number:
5310-01-226-9490

Federal Supply Class:
5310

National Item Identification Number:
012269490

Description:
WASHER,LOCK

Detail:
A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces


Manufacturer Information:
5338739-00153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
MATERIALSTEEL COMP 1075 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR
CHROMATE OR
ZINC AND
ALUMINUM ALLOY OR
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TY 2, CL 2 FED SPEC 1ST TREATMENT RESPONSE OR
MIL-C-87115, CL 1 MIL SPEC 2ND TREATMENT RESPONSE OR
MIL-C-83488, TY 2, CL 2 MIL SPEC 3RD TREATMENT RESPONSE OVERALL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND
53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER3.1 MILLIMETERS MINIMUM AND
3.4 MILLIMETERS MAXIMUM
OUTSIDE DIAMETER5.8 MILLIMETERS NOMINAL
MATERIAL THICKNESS0.7 MILLIMETERS MINIMUM AND
0.9 MILLIMETERS MAXIMUM


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