| Item Name | Ring Assembly Electrical Contact |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5977 Electrical Contact Brushes and Electrodes |
| National Item Identification Number (NIIN) | 00-542-7958 (005427958) |
| NCB Code | USA (00) |
| Manufacturer | General Reliance Corporation, Essner Precision Manufacturing Llc, Harris Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABGL | WIDTH | 0.156 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 0.375 INCHES NOMINAL |
| ABMZ | DIAMETER | 5.750 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 5.875 INCHES NOMINAL |
| ALGC | MOUNTING CONFIGURATION | SIX 0.156 IN. DIA MTG HOLES EQUALLY SPACED ON 3.125 IN. DIA BOLT CIRCLE |
| BLKM | CONTACT RING QUANTITY | 2 |
| MARK | SPECIAL MARKINGS | SYMBOL 0-4007 STAMPED ON RING MTG PLATE |
| Relevant Components for NSN - 5977-00-542-7958, 5977005427958 | ||||
| 5910-00-519-6659 (5910005196659) | 5998-00-402-3992 (5998004023992) | 5950-00-645-9586 (5950006459586) | 5998-01-269-0954 (5998012690954) | |
| 5962-01-336-4927 (5962013364927) | 5930-01-269-5071 (5930012695071) | 5995-01-541-0231 (5995015410231) | 5995-01-312-8234 (5995013128234) | |
| 5955-00-080-1106 (5955000801106) | 5915-01-112-7236 (5915011127236) | 5930-00-583-6117 (5930005836117) | 5930-01-287-3729 (5930012873729) | |
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