| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-257-5850 (002575850) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| A51G20121-14 | northrop grumman systems corporation | washer key | 79rg9 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.470 INCHES MINIMUM AND 0.480 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.703 INCHES MINIMUM AND 0.735 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.216 INCHES MINIMUM AND 0.220 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.748 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.038 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| FEAT | SPECIAL FEATURES | INTERNAL KEY 135 DEG FROM PREBENT KEY |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-257-5850, 5310002575850 | ||||
| 5305-01-339-0166 (5305013390166) | 5365-01-662-5153 (5365016625153) | 5360-01-351-8647 (5360013518647) | 5305-00-452-2092 (5305004522092) | |
| 5320-01-350-0370 (5320013500370) | 5365-01-048-9619 (5365010489619) | 5330-01-329-6615 (5330013296615) | 5331-00-493-8173 (5331004938173) | |
| 5330-00-146-3153 (5330001463153) | 5305-00-052-8884 (5305000528884) | 5330-01-651-5544 (5330016515544) | 5310-00-444-5136 (5310004445136) | |
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.
Request for Quote
