| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-344-0631 (013440631) |
| NCB Code | USA (01) |
| Manufacturer | A M Machine Co Inc, Lockheed Martin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ABKV | OUTSIDE DIAMETER | 0.625 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.130 INCHES NOMINAL |
| AAUB | HOLE DIAMETER | 0.219 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| CSTM | RECESS ANGLE | 100.0 DEGREES NOMINAL |
| FEAT | SPECIAL FEATURES | WASHER IS TAPERED ALONG LENGTH |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| Relevant Components for NSN - 5310-01-344-0631, 5310013440631 | ||||
| 5330-01-539-5629 (5330015395629) | 5305-01-517-2434 (5305015172434) | 5305-00-057-3980 (5305000573980) | 5325-01-082-8190 (5325010828190) | |
| 5305-99-254-4806 (5305992544806) | 5315-01-592-1130 (5315015921130) | 5330-00-561-7707 (5330005617707) | 5330-01-313-3034 (5330013133034) | |
| 5307-01-185-8617 (5307011858617) | 5330-01-648-9167 (5330016489167) | 5365-00-210-1895 (5365002101895) | 5315-01-061-2903 (5315010612903) | |
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