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National Stock Number:
5310-00-913-3365
Federal Supply Class:
5310
National Item Identification Number:
009133365
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:
| 10884982 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 100.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM | | HOLE DIAMETER | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL | STEEL COMP 1018 OR STEEL COMP 1022 OVERALL | | OVERALL DIAMETER | 1.120 INCHES NOMINAL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-321 TY 2 CL 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | | | THICKNESS | 0.190 INCHES NOMINAL |
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