AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Brush 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) | 00-178-8128 (001788128) |
| NCB Code | USA (00) |
| Manufacturer | Zenith Radio Corp, Rockwell Collins Aerospace |
| MRC | Criteria | Characteristic |
|---|---|---|
| AABU | SHUNT POSITION DESIGNATOR | 5 |
| AAQL | BODY STYLE | RECTANGULAR COMMUTATOR |
| ABGG | RADIUS | 0.844 INCHES NOMINAL |
| ABGL | WIDTH | 0.433 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| ABNM | THICKNESS | 0.246 INCHES MINIMUM AND 0.248 INCHES MAXIMUM |
| ABRY | LENGTH | 0.844 INCHES NOMINAL |
| AEBT | TERMINAL DIAMETER | 0.500 INCHES MINIMUM AND 0.503 INCHES MAXIMUM |
| AGWM | LARGEST OUTSIDE DIAMETER | 0.362 INCHES NOMINAL |
| AHXP | BRUSH SHUNT LENGTH | 1.000 INCHES NOMINAL SINGLE SHUNT |
| CQGT | CONTACT FACE STYLE | CONCAVE |
| CRBG | SHUNT INSULATION PROVISION AND QUANTITY | 1 UNINSULATED |
| CRWQ | PRESSURE SPRING TYPE AND QUANTITY | 1 CYLINDRICAL |
| MATT | MATERIAL | METAL GRAPHITE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | UNION CARBIDE CORP GRADE AJT MFR REF SINGLE MATERIAL RESPONSE |
| STYL | STYLE DESIGNATOR | ONE PIECE |
| TTQY | TERMINAL TYPE AND QUANTITY | 1 ROUND CAP W/EARS |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | POLARITY MARKED WITH PLUS SYMBOL |
| Relevant Components for NSN - 5977-00-178-8128, 5977001788128 | ||||
| 5998-01-628-9128 (5998016289128) | 5950-00-556-2628 (5950005562628) | 5910-00-502-7030 (5910005027030) | 5930-01-200-1187 (5930012001187) | |
| 5930-00-436-0040 (5930004360040) | 5998-01-022-6777 (5998010226777) | 5999-01-229-2868 (5999012292868) | 5930-00-451-8223 (5930004518223) | |
| 5980-01-237-3545 (5980012373545) | 5955-00-463-6952 (5955004636952) | 5975-01-438-5116 (5975014385116) | 5998-01-391-1476 (5998013911476) | |
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