The Collar,air Conditioning-Heating, cataloged under National Stock Number 4520-01-118-7260, 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 Flexfab Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-118-7260 |
| Primary Part Number | MAR 4006-0003 |
| Item Name | Collar,air Conditioning-Heating |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Flexfab Llc |
| Status | ACTIVE |
| Fitting Inside Height | 15.120 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR OR SQUARE |
| Fitting Inside Width | 12.880 INCHES NOMINAL IN |
| Material | PLASTIC |
| Fitting Overall Length | 4.460 INCHES NOMINAL IN |
| 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 |
|---|---|
| MAR 4006-0003 PRIMARY | Flexfab Llc (USA) |
| 11501131-3 | Lockheed Martin Corporation (USA) |
| 11501131-3 | Us Army Aviation and Missile Command (USA) |
NSN 4520-01-118-7260 is a Collar,air Conditioning-Heating, manufactured by Flexfab Llc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-118-7260 has 3 manufacturer part numbers on file: MAR 4006-0003 (Flexfab Llc), 11501131-3 (Lockheed Martin Corporation), 11501131-3 (Us Army Aviation and Missile Command).
Key specifications for MAR 4006-0003: Fitting Inside Height: 15.120 INCHES NOMINAL IN; Style Designator: RECTANGULAR OR SQUARE; Fitting Inside Width: 12.880 INCHES NOMINAL IN; Special Features: BELLOWS DESIGN; 0.680 IN. FLANGE WIDTH EACH END IN. 5 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.