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National Stock Number:
5310-00-550-9438
Federal Supply Class:
5310
National Item Identification Number:
005509438
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:
| NAS42HT12-8 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 25.0 ROCKWELL C NOMINAL | | HOLE DIAMETER | 0.376 INCHES MINIMUM AND 0.383 INCHES MAXIMUM | | OVERALL DIAMETER | 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-6736,TY 1 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-T-6732 MIL SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | DYED TO AN IRIDESCENT BRONZE COLOR | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THICKNESS | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
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