| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-158-3544 (011583544) |
| NCB Code | USA (01) |
| Manufacturer | Harris Corporation, Grayhill Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.249 INCHES MINIMUM AND 0.254 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.400 INCHES NOMINAL |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.120 INCHES NOMINAL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.059 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| ABLS | DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.246 INCHES MINIMUM AND 0.254 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.446 INCHES MINIMUM AND 0.454 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.022 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | CENTER HOLE SHAPE,ROUND W/FLATS,WTH 0.250 NOM IN. ACROSS ROUNDED FLATS,WTH 0.205 NOM ACROSS FLATS |
| HUES | COLOR | BLACK OVERALL |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| SFTT | SURFACE TREATMENT | OXIDE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,3.3.4 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-01-158-3544, 5310011583544 | ||||
| 5355-00-871-8773 (5355008718773) | 5340-01-243-1107 (5340012431107) | 5315-01-506-6976 (5315015066976) | 5360-01-371-2450 (5360013712450) | |
| 5305-01-613-5639 (5305016135639) | 5330-01-519-5567 (5330015195567) | 5310-01-577-1001 (5310015771001) | 5342-01-650-6980 (5342016506980) | |
| 5325-01-544-9407 (5325015449407) | 5330-01-276-9620 (5330012769620) | 5340-01-659-7595 (5340016597595) | 5340-01-362-7603 (5340013627603) | |
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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