The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-199-5737, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4720-01-199-5737 |
| Primary Part Number | REDAR-A10766-04 |
| 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 | 14.000 INCHES NOMINAL OVERALL IN |
| Connection Type | THREADED FIRST END |
| Connection Type | THREADED SECOND END |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.156 INCHES NOMINAL0.156 INCHES NOMINAL IN |
| Features Provided | ABRASION RESISTANT |
| Inside Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER CHLOROPRENE CLASS CR ALL PLIES |
| 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 |
|---|---|
| REDAR-A10766-04 PRIMARY | R.e. Darling Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| REDAR-A10766 | D/9 Drawing number reference only R.e. Darling Co., Inc. |
| REDAR-A10766-4 | 5/9 Secondary reference R.e. Darling Co., Inc. |
NSN 4720-01-199-5737 is a Hose Assembly,air Breathing, manufactured by R.e. Darling Co., Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-199-5737 has 1 manufacturer part number on file: REDAR-A10766-04 (R.e. Darling Co., Inc.).
Key specifications for REDAR-A10766-04: Measuring Method and Length: 14.000 INCHES NOMINAL OVERALL IN; Connection Type: THREADED FIRST END; Connection Type: THREADED SECOND END; Cross-Sectional Shape Style: ROUNDROUND. 8 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.