| Item Name | Ring Retaining |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5325 Fastening Devices |
| National Item Identification Number (NIIN) | 00-471-3998 (004713998) |
| NCB Code | USA (00) |
| Manufacturer | Twin Disc Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | TAPERED |
| AARX | INSIDE DIAMETER | 1.938 INCHES NOMINAL |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| ABKV | OUTSIDE DIAMETER | 2.188 INCHES NOMINAL |
| ABMB | MINOR THICKNESS | 0.122 INCHES NOMINAL |
| ABMC | MAJOR THICKNESS | 0.128 INCHES NOMINAL |
| ACXD | RING STYLE | INTERNAL STEPPED |
| ALBY | USAGE DESIGN | INTERNAL |
| ALME | MATERIAL HARDNESS RATING | 43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| MATT | MATERIAL | STEEL COMP 1065 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J412F,COMPOSITION 1065 ASSN STD SINGLE MATERIAL RESPONSE |
| Relevant Components for NSN - 5325-00-471-3998, 5325004713998 | ||||
| 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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