The Connector,duct, cataloged under National Stock Number 4520-01-074-4715, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-074-4715 |
| Item Name | Connector,duct |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | LENGTH 100.0 FT; WIDTH 9.000 IN.; CONSISTING OF 2 3.000 IN. STRIPS OF 24.0 GAUGE METAL SEPARATED BY A 3.000 IN. STRIP OF COTTON DUCK PER FED SPEC CCC-C-428 W/FABRIC SECURED TO META W/A METAL SEAM LOCK W |
| 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 |
|---|---|
| MFC-4-100 | 5/9 Secondary reference Duro Dyne Corporation |
| MBX-4-100 | 3/9 Design control — primary reference Duro Dyne Corporation |
NSN 4520-01-074-4715 is a Connector,duct, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-01-074-4715: General Characteristics Item Description: LENGTH 100.0 FT; WIDTH 9.000 IN.; CONSISTING OF 2 3.000 IN. STRIPS OF 24.0 GAUGE METAL SEPARATED BY A 3.000 IN. STRIP OF COTTON DUCK PER FED SPEC CCC-C-428 W/FABRIC SECURED TO META W/A METAL SEAM LOCK W. 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.