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National Stock Number:
5310-01-229-2550
Federal Supply Class:
5310
National Item Identification Number:
012292550
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:
| 60244-40354 | 97384 | TEXTRON SYSTEMS CORPORATION | | 60244-40354 | 98752 | WARNER ROBINS AIR LOGISTICS CENTER |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | OUTSIDE LEFT CORNER CHAMFER ANGLE | 30.0 DEGREES NOMINAL | | OVERALL DIAMETER | 1.910 INCHES MINIMUM AND 1.970 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | IL-S-5000, STEEL OR NICKEL MOLY BAR, RND, ACFT QUAL, COND C4, E4340,2.00 MIL SPEC 10TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP E4340 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SPECIAL FEATURES | WASHER,CONVEX;MATERIAL,STEEL; C40 MIN AND C45 MAX ROCKWELL HARDNESS; CONVEX,8; 0.755 IN. NOM HOLE DIA, 1.940 IN. NOM OD, MATERIAL THICKNESS,0.594 IN. NIM; K; | | THICKNESS | 0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM |
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