The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-00-977-9268, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is R.e. Darling Co., Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-977-9268 |
| Primary Part Number | REDAR17S1-34TYPEC |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | R.e. Darling Co., Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 34.000 INCHES NOMINAL OVERALL IN |
| Connection Type | THREADED FIRST END |
| Style Designator | SLEEVE SECTION |
| Coupling Style | THREADED INTERNAL FIRST END |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.181 INCHES NOMINAL0.181 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | STEEL REINFORCING WIRE |
| Material | RUBBER SILICONE CLASS Q FIRST PLY |
| Material | COTTON OR WOOL SECOND PLY |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| REDAR17S1-34TYPEC PRIMARY | R.e. Darling Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12107-107-35 | 5/9 Secondary reference American Safety Flight Systems Inc |
| 12107-107-35 | 5/9 Secondary reference Conax Florida Corporation |
NSN 4720-00-977-9268 is a Hose Assembly,air Breathing, manufactured by R.e. Darling Co., Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-977-9268 has 1 manufacturer part number on file: REDAR17S1-34TYPEC (R.e. Darling Co., Inc.).
Key specifications for REDAR17S1-34TYPEC: Measuring Method and Length: 34.000 INCHES NOMINAL OVERALL IN; Connection Type: THREADED FIRST END; Style Designator: SLEEVE SECTION; Coupling Style: THREADED INTERNAL FIRST END. 13 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.