| 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 | Military Standards Corp, Mason Electric Company, Audio Sears Corp, Roanwell Corporation, Joint Electronics Type Designation System, Department Of The Air Force, Military Specifications |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| MS25070 | military standards corp | arm microphone | 96906 | RFQ |
| CE266C | mason electric company | arm microphone | 81579 | RFQ |
| 1147 | audio sears corp | arm microphone | 97101 | RFQ |
| 9951A | roanwell corporation | arm microphone | 82872 | RFQ |
| MT-521A U | joint electronics type designation system | arm microphone | 80058 | RFQ |
| MT521AU | mason electric company | arm microphone | 81579 | RFQ |
| 46D40393 | department of the air force | arm microphone | 80049 | RFQ |
| MIL-M-5793 | military specifications | arm microphone | 81349 | 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 | ||||
| 5975-01-629-6429 (5975016296429) | 5998-01-305-2341 (5998013052341) | 5930-01-584-0809 (5930015840809) | 5962-01-210-3065 (5962012103065) | |
| 5905-00-175-4284 (5905001754284) | 5950-01-458-0903 (5950014580903) | 5920-01-490-0904 (5920014900904) | 5998-01-475-9891 (5998014759891) | |
| 5995-01-575-7529 (5995015757529) | 5962-01-310-7304 (5962013107304) | 5935-01-240-1468 (5935012401468) | 5995-01-374-0247 (5995013740247) | |
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