5310-01-039-0242, WASHER,RECESSED

National Stock Number:
5310-01-039-0242

Federal Supply Class:
5310

National Item Identification Number:
010390242

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.

Manufacturer Information:

BACW10CB3

81205

THE BOEING COMPANY

Techincal Specification:

HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
HOLE DIAMETER	0.192 INCHES MINIMUM AND 0.196 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6358 ASSN STD 3RD MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS	0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM
MATERIAL	STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
OUTSIDE DIAMETER	0.369 INCHES MINIMUM AND 0.389 INCHES MAXIMUM
RECESS ANGLE	90.0 DEGREES NOMINAL
RECESS DIAMETER	0.272 INCHES MINIMUM AND 0.292 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA	81205-BACW10CB MANUFACTURERS STANDARD
STYLE DESIGNATOR	RECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2416 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2416 ASSN STD 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	NICKEL AND CADMIUM OVERALL

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