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National Stock Number:
5310-99-941-8535
Federal Supply Class:
5310
National Item Identification Number:
999418535
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.
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Manufacturer Information:
| 19495 | K2184 | CASE J I LTD | | 19495-1 | K2184 | CASE J I LTD | | 900280 | K2184 | CASE J I LTD | | BS3410 | K7766 | BRITISH STANDARDS INSTITUTION | | BS3410-0 | K7766 | BRITISH STANDARDS INSTITUTION | | 5310-029236 | U1278 | MINISTRY OF DEFENCE NAVY | | WL4 | K0463 | TRANSPORT EQUIPMENT THORNEYCROFT LTD | | K19495 | K2184 | CASE J I LTD | | K19495-1 | K2184 | CASE J I LTD | | K900280 | K2184 | CASE J I LTD | | K966210 | K2184 | CASE J I LTD | | WC704061 | U0759 | SCAMMELL MOTORS BRITISH LEYLAND UK LTD | | Z2ZB11563 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO | | Z2ZB12572 | U1269 | MINISTRY OF DEFENCE - DEFENCE LOGIST S ORGANISATION DLO |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.135 INCHES MINIMUM AND 0.140 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | BS1449,PART 3B,CS4 HARD NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.330 INCHES MINIMUM AND 0.335 INCHES MAXIMUM | | SPECIAL FEATURES | BRINELL HARDNESS NUMBER 157 MINIMUM | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.036 INCHES NOMINAL |
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