AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Headset Chest Set Electrical |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5965 Headsets Handsets Microphones and Speakers |
| National Item Identification Number (NIIN) | 00-577-6172 (005776172) |
| NCB Code | USA (00) |
| Manufacturer | Military Specifications, Audio Sears Corp, Joint Electronics Type Designation System |
| MRC | Criteria | Characteristic |
|---|---|---|
| ACZB | FREQUENCY RATING | 0.9 KILOHERTZ MINIMUM AND 1.2 KILOHERTZ MAXIMUM |
| AFYY | IMPEDANCE RATING | 1.024 KILOHMS NOMINAL |
| AHES | EARPHONE QUANTITY | 1 |
| BKSQ | EARPHONE IMPEDANCE RATING | 1.024 KILOHMS NOMINAL |
| BKSW | MICROPHONE ELEMENT TYPE | SOUND VIBRATION |
| BKSX | OUTPUT LEVEL RATING | 500 TO 2500 CPS FOR 30 DYNES PER SQ CM |
| BKSZ | MICROPHONE MOUNTING FACILITY | HOUSING |
| BKTJ | CHEST PLATE SUSPENSION METHOD | NECK STRAP |
| FEAT | SPECIAL FEATURES | CORROSION RESISTANT,BLAST TESTED |
| Relevant Components for NSN - 5965-00-577-6172, 5965005776172 | ||||
| 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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