PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIS-10221TYPE2Converter,coaxial Thermal

Us Army Aviation and Missile Command · NSN 4931-00-178-1054 · FSC 4931 · No Item Name Available
Verified by PartsTable
NSN 4931-00-178-1054 — this item is cataloged by the U.S. Government under National Stock Number 4931-00-178-1054. Primary manufacturer part number: MIS-10221TYPE2.
Features
  • Converter,coaxial Thermal — FSC 4931
  • General Characteristics Item Description: CASE MATERIAL BRASS,5.625 IN. LG,2.125 IN. DIA,FREQ RANGE FROMDC TO 100 MHZ,INPUT RESISTANCE 200 OHMS PER V,VOLTAGE RATING 1.0 V MHz
  • 3 verified cross-references
  • Primary manufacturer: Us Army Aviation and Missile Command
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Converter,coaxial Thermal, cataloged under National Stock Number 4931-00-178-1054, is classified within Federal Supply Class 4931 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4931-00-178-1054
Primary Part NumberMIS-10221TYPE2
Item NameConverter,coaxial Thermal
FSC / FSG4931 / 49 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
General Characteristics Item DescriptionCASE MATERIAL BRASS,5.625 IN. LG,2.125 IN. DIA,FREQ RANGE FROMDC TO 100 MHZ,INPUT RESISTANCE 200 OHMS PER V,VOLTAGE RATING 1.0 V MHz
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2945-00-098-417213941 INTERCHANGEABLE
Air Cleaner,intake
Falls Filtration Technologies, Inc.
3110-00-555-5581203KT INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
5915-00-782-8929SMD502382 INTERCHANGEABLE
Filter Assembly,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-979-502534970-1 INTERCHANGEABLE
Convertor,thermal
Evoqua Water Technologies Llc
6685-01-046-4462 INTERCHANGEABLE
Probe Assy,temperat
Cross-Reference Index
Part NumberManufacturer
1394-1 Ballantine Laboratories Inc (USA)
1394A-1 Ballantine Laboratories Inc (USA)
MIS-10221TYPE2 PRIMARY Us Army Aviation and Missile Command (USA)
Related Parts
2945-00-098-4172INTERCHANGEABLE
AIR CLEANER,INTAKE
13941
3110-00-555-5581INTERCHANGEABLE
BEARING,BALL,ANNULAR
203KT
5915-00-782-8929INTERCHANGEABLE
FILTER ASSEMBLY,ELECTRICAL
SMD502382
6625-00-979-5025INTERCHANGEABLE
CONVERTOR,THERMAL
34970-1
6685-01-046-4462INTERCHANGEABLE
PROBE ASSY,TEMPERAT

Frequently Asked Questions

What is NSN 4931-00-178-1054?

NSN 4931-00-178-1054 is a Converter,coaxial Thermal, manufactured by Us Army Aviation and Missile Command, classified under FSC 4931 (No Item Name Available). Status: active.

What are the part numbers for NSN 4931-00-178-1054?

NSN 4931-00-178-1054 has 3 cross-referenced part numbers: 1394-1 (Ballantine Laboratories Inc), 1394A-1 (Ballantine Laboratories Inc), MIS-10221TYPE2 (Us Army Aviation and Missile Command).

What NSN replaces 4931-00-178-1054?

There are 5 known substitutes for 4931-00-178-1054: 2945-00-098-4172, 3110-00-555-5581, 5915-00-782-8929 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIS-10221TYPE2?

Key specifications for MIS-10221TYPE2: General Characteristics Item Description: CASE MATERIAL BRASS,5.625 IN. LG,2.125 IN. DIA,FREQ RANGE FROMDC TO 100 MHZ,INPUT RESISTANCE 200 OHMS PER V,VOLTAGE RATING 1.0 V MHz. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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