The Hose,air Duct, cataloged under National Stock Number 4720-01-280-3816, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Bemco, Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-280-3816 |
| Primary Part Number | NAS1376A12SF188 |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Bemco, Inc |
| Status | ACTIVE |
| Measuring Method and Length | 47.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Minimum Inside Bending Radius | 3.000 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.050 INCHES NOMINAL IN |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 3.000 INCHES NOMINAL FIRST END IN |
| Material | STEEL REINFORCING WIRE |
| Material | FIBERGLASS AND PLASTIC POLYVINYL SECOND PLY |
| Material | RUBBER SILICONE CLASS Q AND FIBERGLASS FIRST PLY |
| 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 |
|---|---|
| NAS1376A12SF188 PRIMARY | Bemco, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1376A12SF188 | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-280-3816 is a Hose,air Duct, manufactured by Bemco, Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-280-3816 has 1 manufacturer part number on file: NAS1376A12SF188 (Bemco, Inc).
Key specifications for NAS1376A12SF188: Measuring Method and Length: 47.000 INCHES NOMINAL OVERALL IN; Temp Rating: -75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Minimum Inside Bending Radius: 3.000 INCHES IN; Connection Style: ROUND FIRST END. 15 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.