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| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-377-3921 (003773921) |
| NCB Code | USA (00) |
| Manufacturer | United Technologies Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.450 INCHES MINIMUM AND 0.455 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.705 INCHES MINIMUM AND 0.715 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| ABLD | EXTERNAL TAPERED KEY WIDTH | 0.441 INCHES NOMINAL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.170 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.412 INCHES MINIMUM AND 0.422 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.981 INCHES MINIMUM AND 1.009 INCHES MAXIMUM |
| ABMM | SPLIT KEY LENGTH | 0.175 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 3 |
| ABPX | MATERIAL THICKNESS | 0.032 INCHES NOMINAL |
| CSFW | ANGLE BETWEEN EXTERNAL KEYS | 60.0 DEGREES NOMINAL |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 20.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 321 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-377-3921, 5310003773921 | ||||
| 5310-00-531-1510 (5310005311510) | 5320-01-147-6093 (5320011476093) | 5310-01-038-6432 (5310010386432) | 5360-00-135-9542 (5360001359542) | |
| 5340-01-512-2076 (5340015122076) | 5310-01-694-8813 (5310016948813) | 5320-01-337-2019 (5320013372019) | 5355-01-374-4532 (5355013744532) | |
| 5342-01-198-3930 (5342011983930) | 5340-00-817-0918 (5340008170918) | 5325-01-469-9719 (5325014699719) | 5331-01-249-7877 (5331012497877) | |
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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