| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-077-1029 (010771029) |
| NCB Code | USA (01) |
| Manufacturer | Goodrich Corporation, Triumph Gear Systems Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 1.065 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.178 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| CSTM | RECESS ANGLE | 80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| FEAT | SPECIAL FEATURES | CHAMFER TOP ONE SIDE 0.040 IN.MIN 0.070 IN.MAX BY 40 DEGREES MIN.50 DEGREES MAX |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED |
| Relevant Components for NSN - 5310-01-077-1029, 5310010771029 | ||||
| 5330-01-701-4089 (5330017014089) | 5305-01-213-9722 (5305012139722) | 5320-01-460-5665 (5320014605665) | 5306-01-475-3608 (5306014753608) | |
| 5306-01-626-6230 (5306016266230) | 5306-00-292-8749 (5306002928749) | 5342-01-673-3505 (5342016733505) | 5330-01-283-1784 (5330012831784) | |
| 5365-01-228-1431 (5365012281431) | 5365-00-466-3750 (5365004663750) | 5310-00-595-7616 (5310005957616) | 5305-00-550-0140 (5305005500140) | |
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