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National Stock Number:
5310-99-604-9501
Federal Supply Class:
5310
National Item Identification Number:
996049501
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:
| F318470 | K1987 | BAE SYSTEMS PLC | | F318470 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| OVERALL DIAMETER | 0.660 INCHES NOMINAL | | SPECIAL FEATURES | 0.250 IN. RAD ALONG FLAT;CROSS-SECT SHAPE STYLE RDG A SECT F 140 | | WIDTH | 0.620 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MOD (PE) /DMAT DTD 5567 SCHEME 1 OVER ANODISING MOD DEF 151 TYPE 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE | | SURFACE TREATMENT | PAINT | | THICKNESS | 0.199 INCHES NOMINAL | | CENTER HOLE SHAPE STYLE | ROUND | | COLOR | GREEN | | HOLE DIAMETER | 0.391 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | BS L72 NATIONAL SPEC SINGLE MATERIAL RESPONSE | | MATERIAL | ALUMINUM ALLOY |
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