The Collar,air Conditioning-Heating, cataloged under National Stock Number 4520-01-374-6894, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-374-6894 |
| Item Name | Collar,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Supplementary Features | THIS ITEM IS USED IN CONJUNCTION WITH 4520-01-467-8880; AND BOTH ARE USED IN 4520-01-467-4960. |
| 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 |
|---|---|
| 17P2N4182-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-374-6894 is a Collar,air Conditioning-Heating, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-374-6894: Supplementary Features: THIS ITEM IS USED IN CONJUNCTION WITH 4520-01-467-8880; AND BOTH ARE USED IN 4520-01-467-4960.; Special Features: STEEL,STAINLESS PER 17-7PH; Part Name Assigned by Controlling Agency: RING,ADAPTER,AIR CONDITIONING; End Item Identification: C-17A AIRCRAFT A. 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.