The Pipe,air Conditioning-Heating, cataloged under National Stock Number 4520-01-444-7204, 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 Senior Uk Limited Div Senior Aerospace Bwt. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-444-7204 |
| Primary Part Number | BWT11171-1 |
| Item Name | Pipe,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Senior Uk Limited Div Senior Aerospace Bwt |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 901-325-531-103 | The Boeing Company (USA) |
| BWT11171-1 PRIMARY | Senior Uk Limited Div Senior Aerospace Bwt (GBR) |
NSN 4520-01-444-7204 is a Pipe,air Conditioning-Heating, manufactured by Senior Uk Limited Div Senior Aerospace Bwt, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-444-7204 has 2 manufacturer part numbers on file: 901-325-531-103 (The Boeing Company), BWT11171-1 (Senior Uk Limited Div Senior Aerospace Bwt).
Key specifications for BWT11171-1: Criticality Code Justification: AGAV; End Item Identification: PREPROVISIONING SUPPORT NAVICP IS POE. 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.
NSN 4520-01-444-7204 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.