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National Stock Number:
5310-99-962-2537
Federal Supply Class:
5310
National Item Identification Number:
999622537
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:
| B1-1609-54 | K0231 | QINETIQ | | FL15937 | U1515 | DGS&E TIG IRC | | NM35032 | K3743 | BAE SYSTEMS GLOBAL COMBAT SYSTEMS LIMITED |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MOD DEF 13B GROUP 1 MIL SPEC 1ST MATERIAL RESPONSE OR MOD DEF 13B GROUP 2 MIL SPEC 2ND MATERIAL RESPONSE | | MATERIAL | STEEL | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 1.190 INCHES MINIMUM AND 1.200 INCHES MAXIMUM | | SPECIAL FEATURES | NSN TO BE ETCHED IN 0.060 IN. H CHARACTERS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MOD DEF 29 A CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | PHOSPHATE | | THICKNESS | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM |
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