5315-00-155-4338 KEY,COUPLING Index 5305-00-155-4340 SCREW,MACHINE

National Stock Number:
5310-00-155-4339

Federal Supply Class:
5310

National Item Identification Number:
001554339

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
10389-12-195995WALWORTH CO THE
3119981GLB1 1-2INPC1280064NAVAL SHIP SYSTEMS COMMAND
N-10508-B 1 1/2 PC1295995WALWORTH CO THE
N-10508PC12,1.50IN95995WALWORTH CO THE
S48243119981PC12,1.50IN80064NAVAL SHIP SYSTEMS COMMAND
S48243119981PC12SIZE 1.580064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.


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