4820-00-901-2449 DISK ASSEMBLY,VALVE Index 5307-00-901-2453 STUD,PLAIN

National Stock Number:
5310-00-901-2451

Federal Supply Class:
5310

National Item Identification Number:
009012451

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:
2640-283PC996169ELECTRIC BOAT CORPORATION
2640-622PC996169ELECTRIC BOAT CORPORATION
A20-0918803670TYCO FIRE PRODUCTS LP
9454-42PC917062P J VALVES INC
75865-46X1PC996169ELECTRIC BOAT CORPORATION
845-2109845PIECE996169ELECTRIC BOAT CORPORATION
F20-09573PC1603670TYCO FIRE PRODUCTS LP


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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