| 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) | 00-503-7964 (005037964) |
| NCB Code | USA (00) |
| Manufacturer | Electro Tec Corp, Raytheon Company, Lockheed Martin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABGL | WIDTH | 0.125 INCHES NOMINAL |
| ABHP | OVERALL LENGTH | 0.750 INCHES NOMINAL |
| ABMZ | DIAMETER | 3.506 INCHES NOMINAL |
| ABMZ | DIAMETER | 3.947 INCHES NOMINAL |
| ABMZ | DIAMETER | 4.388 INCHES NOMINAL |
| ABMZ | DIAMETER | 4.829 INCHES NOMINAL |
| ABMZ | DIAMETER | 5.270 INCHES NOMINAL |
| ABMZ | DIAMETER | 5.711 INCHES NOMINAL |
| ABMZ | DIAMETER | 6.152 INCHES NOMINAL |
| ABMZ | DIAMETER | 6.593 INCHES NOMINAL |
| ABMZ | DIAMETER | 7.034 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 7.250 INCHES NOMINAL |
| ALGC | MOUNTING CONFIGURATION | THREE 0.188 IN. DIA MTG HOLES 120 DEG APART ON 4.500 IN. DIA BOLT CIRCLE |
| BLKM | CONTACT RING QUANTITY | 9 |
| SFTT | SURFACE TREATMENT | SILVER ALLOY RING |
| ZZZV | FSC APPLICATION DATA | ANTENNA,RADAR SEARCH EQUIPMENT,AIRBORNE |
| Relevant Components for NSN - 5977-00-503-7964, 5977005037964 | ||||
| 5905-00-284-5850 (5905002845850) | 5910-00-615-5501 (5910006155501) | 5985-01-673-8882 (5985016738882) | 5940-01-605-8237 (5940016058237) | |
| 5998-00-050-1782 (5998000501782) | 5905-01-410-2888 (5905014102888) | 5905-01-285-8665 (5905012858665) | 5950-01-020-0609 (5950010200609) | |
| 5930-01-455-8048 (5930014558048) | 5935-01-313-4424 (5935013134424) | 5905-00-284-3888 (5905002843888) | 5995-01-713-4352 (5995017134352) | |
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