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National Stock Number:
5310-01-131-2957
Federal Supply Class:
5310
National Item Identification Number:
011312957
Description:
WASHER,SHOULDERED AND RECESSED
Detail:
A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use BEARING, SLEEVE; BUSHING, SLEEVE; or SPACER, SLEEVE. Excludes INSULATOR, WASHER and thrust type washers.
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Manufacturer Information:
| 10109599 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 74A110681-2001 | 1U854 | NWI WICHITA LLC | | 74A110681-2001 | 25989 | STEELVILLE MANUFACTURING CO | | 74A110681-2001 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.312 INCHES MINIMUM AND 0.319 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.900 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.375 INCHES MINIMUM AND 0.405 INCHES MAXIMUM | | SHOULDER DIAMETER | 1.750 INCHES NOMINAL | | SHOULDER HEIGHT | 0.140 INCHES NOMINAL | | SPECIAL FEATURES | BEARING SURFACE CONVEX 3.000 IN. RADIUS |
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