| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-053-3983 (010533983) |
| NCB Code | USA (01) |
| Manufacturer | Janco Corporation, Boeing Company The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.625 INCHES NOMINAL |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.060 INCHES NOMINAL |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.065 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.032 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 57.0 ROCKWELL B MINIMUM AND 77.0 ROCKWELL B MAXIMUM |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613,FORM SHEET,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | NICKEL OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Components Related to NSN - 5310-01-053-3983, 5310010533983 | ||||
| 5310-01-197-4020 (5310011974020) | 5315-01-603-3457 (5315016033457) | 5307-00-208-2583 (5307002082583) | 5306-00-723-0855 (5306007230855) | |
| 5306-01-051-8024 (5306010518024) | 5365-00-997-7495 (5365009977495) | 5360-00-769-7461 (5360007697461) | 5360-01-313-5636 (5360013135636) | |
| 5330-01-455-6923 (5330014556923) | 5340-00-061-1146 (5340000611146) | 5320-00-333-6513 (5320003336513) | 5310-01-109-8086 (5310011098086) | |
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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