| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-550-1378 (005501378) |
| NCB Code | USA (00) |
| Manufacturer | Paradigm Manchester Inc, Turbo Power And Marine System Inc, United Technologies Corporation, Gould E A And Co, Dynamic Gunver Technologies Llc, Atomic Energy Commission, Triple A Spring Limited |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 271700 | paradigm manchester inc | washer key | RFQ |
| 271700 | turbo power and marine system inc | washer key | RFQ |
| 271700 | united technologies corporation | washer key | RFQ |
| 271700 | gould e a and co | washer key | RFQ |
| 271700 | dynamic gunver technologies llc | washer key | RFQ |
| 271700 | atomic energy commission | washer key | RFQ |
| 271700 | triple a spring limited | washer key | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 3.030 INCHES MINIMUM AND 3.050 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 3.270 INCHES MINIMUM AND 3.290 INCHES MAXIMUM |
| ABKY | EXTERNAL PREBENT KEY LENGTH | 0.330 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 1.400 INCHES MINIMUM AND 1.420 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 3.340 INCHES MINIMUM AND 3.360 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 31 |
| ABMR | INTERNAL KEY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.0270 INCHES MINIMUM AND 0.0295 INCHES MAXIMUM |
| CSKN | EXTERNAL PREBENT KEY ANGLE | 90.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 321 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-550-1378, 5310005501378 | ||||
| 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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