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National Stock Number:
5310-01-042-8874
Federal Supply Class:
5310
National Item Identification Number:
010428874
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:
| BACW10BP4C | 81205 | THE BOEING COMPANY | | BACW10BP4C | Z03F0 | BOEING DEFENCE AUSTRALIA LTD | | NTA11551-4C | A0170 | LEONARDO SPA AEROSTRUCTURE DIVISION | | BACW10BP4C | Z8T75 | BOEING DEFENCE AUSTRALIA LTD |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OR | | STEEL COMP 8630 OR | | STEEL COMP 4135 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-18728 MIL SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-18733 MIL SPEC 3RD MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND | | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.250 INCHES MINIMUM AND | | 0.261 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.475 INCHES MINIMUM AND | | 0.495 INCHES MAXIMUM | | RECESS DIAMETER | 0.332 INCHES MINIMUM AND | | 0.352 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND | | 0.069 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES MINIMUM AND | | 100.0 DEGREES MAXIMUM | | SPECIFICATION/STANDARD DATA | 81205-BACW10BP MANUFACTURERS STANDARD |
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