The Hose,air Duct, cataloged under National Stock Number 4720-01-164-3937, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is The Boeing Company. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Royal Engineered Composites, Inc. (CAGE 16357); The Boeing Company (CAGE 8V613); Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (CAGE 14711) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-164-3937 |
| Primary Part Number | 7-211710044 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | The Boeing Company |
| 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 |
|---|---|
| SF12-104 | Royal Engineered Composites, Inc. (USA) |
| 7-211710044 PRIMARY | The Boeing Company (USA) |
| 10A14A06SH049 | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (USA) |
| Reference | Meaning |
|---|---|
| 12-104 | 5/9 Secondary reference Royal Engineered Composites, Inc. |
| SF12-04 | 5/9 Secondary reference Royal Engineered Composites, Inc. |
| 7-211710044 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 4720-01-164-3937 is a Hose,air Duct, manufactured by The Boeing Company, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-164-3937 has 3 manufacturer part numbers on file: SF12-104 (Royal Engineered Composites, Inc.), 7-211710044 (The Boeing Company), 10A14A06SH049 (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.
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.