The Elbow,air Conditioning-Heating, cataloged under National Stock Number 4520-01-549-9185, 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 Caterpillar Inc Div Caterpillar Defense. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-549-9185 |
| Primary Part Number | 218-6645 |
| Item Name | Elbow,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 218-6645 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 4520-01-549-9185 is a Elbow,air Conditioning-Heating, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-549-9185 has 1 manufacturer part number on file: 218-6645 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 218-6645: Part Name Assigned by Controlling Agency: ELBOW; End Item Identification: MULTI TERRAIN LOADER; 3805-01-539-3925. 0 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.