The Hose,air Duct, cataloged under National Stock Number 4720-01-718-2840, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Senior Operations Llc Dba Metal Bellows Div Metal Bellows. 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 | 4720-01-718-2840 |
| Primary Part Number | 77728-3 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Senior Operations Llc Dba Metal Bellows Div Metal Bellows |
| 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 |
|---|---|
| 77728-3 PRIMARY | Senior Operations Llc Dba Metal Bellows Div Metal Bellows (USA) |
NSN 4720-01-718-2840 is a Hose,air Duct, manufactured by Senior Operations Llc Dba Metal Bellows Div Metal Bellows, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-718-2840 has 1 manufacturer part number on file: 77728-3 (Senior Operations Llc Dba Metal Bellows Div Metal Bellows).
Key specifications for 77728-3: Part Name Assigned by Controlling Agency: BELLOWS; End Item Identification: 211E4B19-6RRW. 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.