| 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) | 00-503-9479 (005039479) |
| NCB Code | USA (00) |
| Manufacturer | Arma Div |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABGL | WIDTH | 0.141 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 1.562 INCHES MAXIMUM |
| ABMZ | DIAMETER | 4.125 INCHES MAXIMUM |
| ADAV | OVERALL DIAMETER | 4.250 INCHES NOMINAL |
| ALGC | MOUNTING CONFIGURATION | FOUR 0.125 IN. DIA MTG HOLES EQUALLY SPACED ON 3.500 IN. DIA BOLT CIRCLE |
| BLKM | CONTACT RING QUANTITY | 4 |
| BLKN | RING SURFACE MATERIAL | BRASS |
| FEAT | SPECIAL FEATURES | TWO METAL RINGS 3.000 IN. MAX ID IN CENTER OF ASSEMBLY INTERCONNECTED TO OUTER COLLECTER RINGS |
| ZZZV | FSC APPLICATION DATA | COMPASS,GYRO |
| Components Related to NSN - 5977-00-503-9479, 5977005039479 | ||||
| 5950-00-090-9508 (5950000909508) | 5995-01-203-9438 (5995012039438) | 5910-01-019-3189 (5910010193189) | 5910-00-107-4241 (5910001074241) | |
| 5905-01-061-7043 (5905010617043) | 5998-01-200-5542 (5998012005542) | 5995-01-006-0886 (5995010060886) | 5998-01-393-1676 (5998013931676) | |
| 5998-00-560-0747 (5998005600747) | 5985-00-087-4949 (5985000874949) | 5950-01-258-0567 (5950012580567) | 5940-00-852-3386 (5940008523386) | |
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