| Item Name | Nut Plain Extended Washer Hexago |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-644-0981 (016440981) |
| NCB Code | USA (01) |
| Manufacturer | Spiralock Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ACTA | NUT STYLE | HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.305 INCHES MINIMUM |
| CMLP | THREAD QUANTITY PER INCH | 2A |
| MATT | MATERIAL | STEEL OVERALL |
| AAJE | THREAD PITCH DIAMETERS | -18.5 TO 25.0 INCHES |
| AAVX | WASHER OUTSIDE DIAMETER | 0.440 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 0.328 INCHES MAXIMUM |
| ADEM | WASHER THICKNESS | 0.050 INCHES NOMINAL |
| BZRR | THREAD SERIES | UNJF |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| Relevant Components for NSN - 5310-01-644-0981, 5310016440981 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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