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National Stock Number: 5310-01-145-8413
Federal Supply Class: 5310
National Item Identification Number: 011458413
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:
| 71320369-001 | 04939 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,TEMPER 6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | SHOULDERED AND RECESSED | | HOLE DIAMETER | 0.155 INCHES MINIMUM AND | | 0.161 INCHES MAXIMUM | | SHOULDER DIAMETER | 0.312 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.473 INCHES NOMINAL | | RECESS DIAMETER | 0.300 INCHES NOMINAL | | SHOULDER HEIGHT | 0.045 INCHES NOMINAL | | MATERIAL THICKNESS | 0.075 INCHES NOMINAL | | RECESS ANGLE | 100.0 DEGREES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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