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National Stock Number:
5310-00-167-0880
Federal Supply Class:
5310
National Item Identification Number:
001670880
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:
| 993R0048 PC. N0 | 63857 | CIRCOR NAVAL SOLUTIONS LLC | | 993R0048 PC. NO | 63857 | CIRCOR NAVAL SOLUTIONS LLC | | AN975-7 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| HOLE DIAMETER | 0.437 INCHES MINIMUM AND 0.469 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM | | OVERALL HEIGHT | 0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A108 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A108 ASSN STD 3RD MATERIAL RESPONSE OR QQ-S-698 FED SPEC 4TH MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.077 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1018 OR STEEL COMP 1020 OR STEEL COMP 1025 OR STEEL OVERALL | | RECESS DEPTH | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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