| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-013-4423 (010134423) |
| NCB Code | USA (01) |
| Manufacturer | Aerocontrolex Group Inc, Pht Aerospace Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.404 INCHES MINIMUM AND 0.445 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.560 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.080 INCHES NOMINAL |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | 0.088 INCHES MINIMUM AND 0.092 INCHES MAXIMUM |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.167 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.730 INCHES MINIMUM AND 0.740 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 11 |
| ABMR | INTERNAL KEY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.040 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | TIN OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-01-013-4423, 5310010134423 | ||||
| 5365-01-154-3010 (5365011543010) | 5340-01-649-7519 (5340016497519) | 5330-01-012-7329 (5330010127329) | 5306-01-564-7258 (5306015647258) | |
| 5360-00-344-1821 (5360003441821) | 5310-00-579-3436 (5310005793436) | 5320-01-488-3924 (5320014883924) | 5306-01-170-3185 (5306011703185) | |
| 5305-01-503-2037 (5305015032037) | 5365-01-149-0664 (5365011490664) | 5340-01-550-5477 (5340015505477) | 5306-01-330-3156 (5306013303156) | |
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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