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National Stock Number:
5310-01-252-0620
Federal Supply Class:
5310
National Item Identification Number:
012520620
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:
| 1395AS157 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| HOLE DIAMETER | 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.030 INCHES MINIMUM AND 1.050 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL THICKNESS | 0.130 INCHES MINIMUM AND 0.170 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OVERALL | | SHOULDER HEIGHT | 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM | | SHOULDER DIAMETER | 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM | | RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM | | SPECIAL FEATURES | SOLID FILM LUBRICANT | | STYLE DESIGNATOR | SHOULDERED AND RECESSED | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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