| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-331-9195 (003319195) |
| NCB Code | USA (00) |
| Manufacturer | Alinabal Holdings Corporation, Triple A Spring Limited, United Technologies Corporation, Royal Oak Gage Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| ABLD | EXTERNAL TAPERED KEY WIDTH | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.789 INCHES MINIMUM AND 0.809 INCHES MAXIMUM |
| ABMM | SPLIT KEY LENGTH | 0.150 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| CSFW | ANGLE BETWEEN EXTERNAL KEYS | 58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 20.0 DEGREES MINIMUM AND 40.0 DEGREES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 310 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Components Related to NSN - 5310-00-331-9195, 5310003319195 | ||||
| 5330-00-038-4345 (5330000384345) | 5305-01-191-2462 (5305011912462) | 5365-00-898-3506 (5365008983506) | 5315-01-424-1290 (5315014241290) | |
| 5330-01-696-0897 (5330016960897) | 5330-01-561-7601 (5330015617601) | 5342-00-408-9183 (5342004089183) | 5310-00-981-2299 (5310009812299) | |
| 5340-01-523-8925 (5340015238925) | 5342-01-649-3882 (5342016493882) | 5310-00-943-5411 (5310009435411) | 5340-01-569-9497 (5340015699497) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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