| Item Name | Washer Keyway |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-157-7658 (011577658) |
| NCB Code | USA (01) |
| Manufacturer | Westinghouse Electric Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.312 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.873 INCHES MINIMUM AND 0.874 INCHES MAXIMUM |
| ABKZ | EXTERNAL KEYWAY LENGTH | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM |
| ABLL | EXTERNAL KEYWAY WIDTH | 0.100 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM |
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZY |
| FEAT | SPECIAL FEATURES | OPPOSITE END OF THE KEYWAY,ON THE OUTSIDE DIAMETER,A DISTANCE OF 0.002 INCHES MAXIMUM,FROM THE CENTER OF THE INSIDE DIAMETER,THE OUTSIDE EDGE IS FLAT ACROSS |
| MATT | III MATERIAL | STEEL COMP 304 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A276 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Relevant Components for NSN - 5310-01-157-7658, 5310011577658 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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