| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-388-8026 (013888026) |
| NCB Code | USA (01) |
| Manufacturer | General Electric Company, National Instruments Corporation, Hamilton Sundstrand Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | MATERIAL | STEEL COMP 304 OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| AAUB | HOLE DIAMETER | 1.009 INCHES MINIMUM AND 1.019 INCHES MAXIMUM |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.070 INCHES NOMINAL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.395 INCHES MINIMUM AND 1.400 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.008 INCHES NOMINAL |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| FEAT | SPECIAL FEATURES | INCULDES TWO INTERNAL PREBENT KEYS LOCATED 0.350 INCHES APART. |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-388-8026, 5310013888026 | ||||
| 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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