The Adapter,air Conditioning-Heating, cataloged under National Stock Number 4520-01-257-0348, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Adapter,air Conditioning-Heating |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Avox Systems Inc Dba Avox Systems Inc (CAGE 53655) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-257-0348 |
| Primary Part Number | 22740-3 |
| Item Name | Adapter,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Avox Systems Inc Dba Avox Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 22740-3 PRIMARY | Avox Systems Inc Dba Avox Systems Inc (USA) |
NSN 4520-01-257-0348 is a Adapter,air Conditioning-Heating, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-257-0348 has 1 manufacturer part number on file: 22740-3 (Avox Systems Inc Dba Avox Systems Inc).
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.