The Hose,air Duct, cataloged under National Stock Number 4720-01-166-0925, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (CAGE 14711) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-166-0925 |
| Primary Part Number | 21A18-08C45-6 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 21A18-08C45-6 PRIMARY | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (USA) |
| Reference | Meaning |
|---|---|
| 21A18-08045-6 | 5/9 Secondary reference Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc |
| LE271-0108-0633 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
NSN 4720-01-166-0925 is a Hose,air Duct, manufactured by Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-166-0925 has 1 manufacturer part number on file: 21A18-08C45-6 (Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4720-01-166-0925 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.