| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-149-9123 (001499123) |
| NCB Code | USA (00) |
| Manufacturer | Military Standards Corp, Oshkosh Corporation, Nimikkeistokeskus Ncb Finland, National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MS20002C20 | military standards corp | washer recessed | RFQ |
| 1504600 | oshkosh corporation | washer recessed | RFQ |
| 10335463 | nimikkeistokeskus ncb finland | washer recessed | RFQ |
| NAS143-20C | national aerospace standards com | washer recessed | RFQ |
| MS20002C20 | national aerospace standards com | washer recessed | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 1.260 INCHES MINIMUM AND 1.275 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 1.427 INCHES MINIMUM AND 1.447 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 125 POUNDS PER SQUARE INCH |
| CSTM | RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM |
| FEAT | SPECIAL FEATURES | HEAT TREATMENT PER MIL-H-6875 |
| MATT | MATERIAL | STEEL COMP 1330 OVERALL OR STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED |
| Relevant Components for NSN - 5310-00-149-9123, 5310001499123 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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