The Hose,air Duct, cataloged under National Stock Number 4720-01-026-3854, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Flexible Technologies Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-026-3854 |
| Primary Part Number | FLEXFLYTE R-4IN-ID-12FT |
| Item Name | Hose,air Duct |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Flexible Technologies Inc |
| Status | ACTIVE |
| Measuring Method and Length | 144.000 INCHES NOMINAL OVERALL IN |
| Minimum Inside Bending Radius | 2.000 INCHES IN |
| Connection Style | ROUND FIRST END |
| Connection Type | SOFT FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 11.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 4.000 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.500 INCHES NOMINAL FIRST END IN |
| End Inside Diameter | 4.000 INCHES NOMINAL FIRST END IN |
| 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 |
|---|---|
| FLEXFLYTE R-4IN-ID-12FT PRIMARY | Flexible Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| FLEXFLYTE R | 3/1 Design control — primary reference Flexible Technologies Inc |
| GLASH0SE | 5/9 Secondary reference Recon/optical, Inc. |
| GLASH0SE4IN-ID-12FT | 5/9 Secondary reference Recon/optical, Inc. |
| FLEXFLYTE R-05F | 5/1 Secondary reference Flexible Technologies Inc |
| FLEXFLYTE R-05F4IN-ID-12FT | 5/9 Secondary reference Flexible Technologies Inc |
| GLASHOSE | 3/1 Design control — primary reference U.S. Government activity |
NSN 4720-01-026-3854 is a Hose,air Duct, manufactured by Flexible Technologies Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-026-3854 has 1 manufacturer part number on file: FLEXFLYTE R-4IN-ID-12FT (Flexible Technologies Inc).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-026-8715. Verify interchangeability with system specifications before substitution.
Key specifications for FLEXFLYTE R-4IN-ID-12FT: Measuring Method and Length: 144.000 INCHES NOMINAL OVERALL IN; Minimum Inside Bending Radius: 2.000 INCHES IN; Connection Style: ROUND FIRST END; Connection Type: SOFT FIRST END. 10 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.