The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-140-4381, 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 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-140-4381 |
| Primary Part Number | REDAR-A10527-24 |
| 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 | 72.000 INCHES NOMINAL OVERALL IN |
| Operating Pressure | 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| 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-A10527-24 | R.e. Darling Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7920003-9 | 5/9 Secondary reference Conax Florida Corporation |
| MIL-H-81581/3 | 4/1 Identification reference U.S. Government activity |
| 8148650 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 7920003-9 | 5/9 Secondary reference American Safety Flight Systems Inc |
| 33C1202-720 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-140-4381 is a Hose Assembly,air Breathing, manufactured by R.e. Darling Co., Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-140-4381 has 1 manufacturer part number on file: REDAR-A10527-24 (R.e. Darling Co., Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-141-2928. Verify interchangeability with system specifications before substitution.
Key specifications for REDAR-A10527-24: Measuring Method and Length: 72.000 INCHES NOMINAL OVERALL IN; Operating Pressure: 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS. 2 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.