| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-166-4546 (011664546) |
| NCB Code | USA (01) |
| Manufacturer | Nato Stock Number Assigned Byanother, British Standards Institution |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 99-943-6213 | nato stock number assigned byanother | washer key | inte9 | RFQ |
| SP109G | british standards institution | washer key | k7766 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.320 INCHES MINIMUM AND 0.325 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| ABLD | EXTERNAL TAPERED KEY WIDTH | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.325 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |
| CSFW | ANGLE BETWEEN EXTERNAL KEYS | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 15.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STYL | STYLE DESIGNATOR | 270 DEGREE LOCKING KEY |
| Relevant Components for NSN - 5310-01-166-4546, 5310011664546 | ||||
| 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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