| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-912-6119 (009126119) |
| NCB Code | USA (00) |
| Manufacturer | Alcoa Global Fasteners Inc, Sps Technologies Inc, Harvard Industries Inc, Fitz Aerospace Llc, Lockheed Martin Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| K28-5 | alcoa global fasteners inc | washer recessed | 15653 | RFQ |
| 64127W5 | sps technologies inc | washer recessed | 56878 | RFQ |
| 7611-05 | harvard industries inc | washer recessed | 72962 | RFQ |
| 7611-05 | fitz aerospace llc | washer recessed | 019l2 | RFQ |
| C396-5B | lockheed martin corporation | washer recessed | 81755 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.433 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.650 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 0.550 INCHES MINIMUM AND 0.560 INCHES MAXIMUM |
| ABMH | RECESS DEPTH | 0.097 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE 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 - 5310-00-912-6119, 5310009126119 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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