AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Arm Microphone |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5965 Headsets Handsets Microphones and Speakers |
| National Item Identification Number (NIIN) | 00-256-8407 (002568407) |
| NCB Code | USA (00) |
| Manufacturer | Joint Electronics Type Designation System, Mason Electric Company, Roanwell Corporation, Military Specifications, Department Of The Air Force, Audio Sears Corp, Military Standards Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MT-521A U | joint electronics type designation system | arm microphone | RFQ |
| MT521AU | mason electric company | arm microphone | RFQ |
| 9951A | roanwell corporation | arm microphone | RFQ |
| MIL-M-5793 | military specifications | arm microphone | RFQ |
| 46D40393 | department of the air force | arm microphone | RFQ |
| 1147 | audio sears corp | arm microphone | RFQ |
| MS25070 | military standards corp | arm microphone | RFQ |
| CE266C | mason electric company | arm microphone | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 9.000 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 1.250 INCHES NOMINAL |
| ADUM | OVERALL THICKNESS | 2.000 INCHES NOMINAL |
| AXGY | MOUNTING METHOD | W/SWIVEL SLIDE AND DETENT ACTION |
| BKSB | MICROPHONE ATTACHMENT METHOD | CLIP |
| FEAT | SPECIAL FEATURES | SHOCK RESISTANT |
| MATT | MATERIAL | STEEL |
| TEST | TEST DATA DOCUMENT | 81349-MIL-M-5793 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTIN |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | MT-521A/U TYPE |
| Relevant Components for NSN - 5965-00-256-8407, 5965002568407 | ||||
| 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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