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National Stock Number:
5310-01-388-8012
Federal Supply Class:
5310
National Item Identification Number:
013888012
Description:
WASHER,RECESSED
Detail:
A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.
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Manufacturer Information:
| 03A257C-7P | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | AS19879C7P | 10630 | ANILLO INDUSTRIES LLC | | MM118C7P | 58009 | MOELLER MANUFACTURING & SUPPLY, LLC | | NS202860C-7P | 80539 | SPS TECHNOLOGIES, LLC | | VN948C-7P | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| HOLE DIAMETER | 0.439 INCHES MINIMUM AND 0.443 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 1ST MATERIAL RESPONSE OR AMS5596 ASSN STD 2ND MATERIAL RESPONSE OR AMS5597 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM | | MATERIAL | IRON ALLOY 660 OR NICKEL ALLOY 718 OVERALL | | OUTSIDE DIAMETER | 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM | | RECESS ANGLE | 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.539 INCHES MINIMUM AND 0.549 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY2, CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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