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National Stock Number:
5310-01-130-7720
Federal Supply Class:
5310
National Item Identification Number:
011307720
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:
| 10109569 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 5310PL0204349 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | NAS1149C0763B | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | AN960XC716 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| MATERIAL | STEEL CORROSION RESISTING OR | | STEEL COMP 321 OR | | STEEL COMP 347 OR | | STEEL COMP 348 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC 1ST MATERIAL RESPONSE AND | | MIL-S-6721 MIL SPEC 2ND MATERIAL RESPONSE AND | | MIL-S-6721 MIL SPEC 3RD MATERIAL RESPONSE AND | | MIL-S-6721 MIL SPEC 4TH MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | OXIDE FILM OVERALL | | CENTER HOLE SHAPE STYLE | ROUND | | HOLE DIAMETER | 0.443 INCHES MINIMUM AND | | 0.463 INCHES MAXIMUM | | PERIPHERAL SHAPE STYLE | ROUND | | OVERALL DIAMETER | 0.745 INCHES MINIMUM AND | | 0.770 INCHES MAXIMUM | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | THICKNESS | 0.053 INCHES MINIMUM AND | | 0.073 INCHES MAXIMUM |
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