| 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 | Triple A Spring Limited, United Technologies Corporation, Alinabal Holdings 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 | ||||
| 5305-01-222-3196 (5305012223196) | 5340-01-420-2904 (5340014202904) | 5305-01-506-5038 (5305015065038) | 5307-01-093-0586 (5307010930586) | |
| 5306-01-455-2212 (5306014552212) | 5320-01-425-9724 (5320014259724) | 5330-01-429-5246 (5330014295246) | 5340-01-359-3660 (5340013593660) | |
| 5330-01-524-1191 (5330015241191) | 5320-00-395-6445 (5320003956445) | 5310-01-510-7415 (5310015107415) | 5310-01-104-8190 (5310011048190) | |
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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