The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-00-442-9934, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-442-9934 |
| Primary Part Number | REDARA10664-1 |
| 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 | 14.250 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND BOTH ENDS |
| Connection Type | THREADED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.086 INCHES NOMINAL0.086 INCHES NOMINAL IN |
| Inside Diameter | 0.812 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.700 INCHES NOMINAL BOTH ENDS IN |
| End Inside Diameter | 0.875 INCHES NOMINAL BOTH ENDS IN |
| Material | STEEL REINFORCING WIRE |
| Material | PLASTIC POLYAMIDE NYLON AND RUBBER NATURAL SECOND PLY |
| Material | RUBBER NATURAL 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 |
|---|---|
| REDARA10664-1 PRIMARY | R.e. Darling Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| A10664-1 | C/1 Advisory reference — outside the item-of-supply concept R.e. Darling Co., Inc. |
NSN 4720-00-442-9934 is a Hose Assembly,air Breathing, manufactured by R.e. Darling Co., Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-442-9934 has 1 manufacturer part number on file: REDARA10664-1 (R.e. Darling Co., Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5365-00-682-5877. Verify interchangeability with system specifications before substitution.
Key specifications for REDARA10664-1: Measuring Method and Length: 14.250 INCHES NOMINAL OVERALL IN; Connection Style: ROUND BOTH ENDS; Connection Type: THREADED BOTH ENDS; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 12 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.