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National Stock Number:
5310-01-211-1490
Federal Supply Class:
5310
National Item Identification Number:
012111490
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:
| 1078515 | 49956 | RAYTHEON COMPANY | | 1078515-1 | 3B150 | RAYTHEON COMPANY | | 1078515-1 | 49956 | RAYTHEON COMPANY | | 320026 REV D | 49956 | RAYTHEON COMPANY | | 1078515-1 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
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Techincal Specification:
| HOLE DIAMETER | 4.250 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 6061 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 6.500 INCHES NOMINAL | | SPECIAL FEATURES | 4) THRU HOLES EQUALLY SPACED 5.875 IN. NOM. FROM CENTER; HOLE DIA. 0.335 IN. MIN., 0.408 IN. MAX.; MATERIAL THICKNESS:0.494 IN. NOM. | | RECESS DEPTH | 0.187 INCHES NOMINAL | | RECESS DIAMETER | 4.501 INCHES MINIMUM AND 4.507 INCHES MAXIMUM | | SHOULDER DIAMETER | 4.499 INCHES MINIMUM AND 4.501 INCHES MAXIMUM | | SHOULDER HEIGHT | 0.156 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED AND RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE OVERALL |
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