The Pipe,air Conditioning-Heating, cataloged under National Stock Number 4520-01-376-2750, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-376-2750 |
| Item Name | Pipe,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Length | 35.900 INCHES NOMINAL IN |
| Cross-Sectional Width | 10.700 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/10, H34 FED SPEC SINGLE MATERIAL RESPONSE |
| Shape | RECTANGULAR |
| Cross-Sectional Length | 66.400 INCHES MINIMUM AND 68.700 INCHES MAXIMUM IN |
| Construction | SINGLE |
| Material | ALUMINUM ALLOY 5454 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 5750005 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5750005-197 | 3/9 Design control — primary reference Textron Systems Corp |
NSN 4520-01-376-2750 is a Pipe,air Conditioning-Heating, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-376-2750: Length: 35.900 INCHES NOMINAL IN; Cross-Sectional Width: 10.700 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/10, H34 FED SPEC SINGLE MATERIAL RESPONSE; Shape: RECTANGULAR. 7 specifications are 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.