The Converter,coaxial Thermal, cataloged under National Stock Number 4931-00-178-1053, is classified within Federal Supply Class 4931 (Fire Control Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4931-00-178-1053 |
| Primary Part Number | MIS-10221TYPE1 |
| Item Name | Converter,coaxial Thermal |
| FSC / FSG | 4931 / 49 — Fire Control Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| General Characteristics Item Description | CASE MATERIAL BRASS,5.625 IN. LG,2.125 IN. DIA,FREQ RANGE FROM DCTO 100 MHZ,INPUT RESISTANCE 200 OHMS PER V,VOLTAGE RATING 0.5 V MHz |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| MIS-10221TYPE1 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 1394A0.5 | 5/1 Secondary reference Ballantine Laboratories Inc |
| 1394A-0.5 | 5/9 Secondary reference Computer Instrumentation Ltd |
| 1394-0.5 | 5/9 Secondary reference Ballantine Laboratories Inc |
NSN 4931-00-178-1053 is a Converter,coaxial Thermal, manufactured by Us Army Aviation and Missile Command, classified under FSC 4931, Fire Control Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4931-00-178-1053 has 1 manufacturer part number on file: MIS-10221TYPE1 (Us Army Aviation and Missile Command).
2 possible matches (shared part number, not a government interchangeability claim): 6720-01-018-6053, 3120-01-164-8355. Verify interchangeability with system specifications before substitution.
Key specifications for MIS-10221TYPE1: General Characteristics Item Description: CASE MATERIAL BRASS,5.625 IN. LG,2.125 IN. DIA,FREQ RANGE FROM DCTO 100 MHZ,INPUT RESISTANCE 200 OHMS PER V,VOLTAGE RATING 0.5 V MHz. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.