The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-068-5315, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-068-5315 |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Hose Weight | 5.000 OUNCES PER LINEAR FOOT OZ |
| Connection Style | ROUND SECOND END |
| Connection Type | THREADED FIRST END |
| Connection Type | THREADED SECOND END |
| Style Designator | FULLY CONVOLUTED W/ WIRE RINGS BETWEEN CONVOLUTIONS |
| Coupling Style | CONNECTOR, OXYGEN HOSE TO REGULATOR (NOTE: APPLICABLE TO HOSE ASSEMBLY, AIR BREATHING ONLY.) FIRST END |
| Material Document and Classification | QQ-B-626,COMP 22,1/2 H FED SPEC SINGLE MATERIAL RESPONSE FIRST END COUPLING |
| Cross-Sectional Shape Style | ROUND |
| Wall Thickness | 0.250 INCHES NOMINAL IN |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Inside Diameter | 0.750 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL SECOND END IN |
| End Inside Diameter | 0.859 INCHES NOMINAL SECOND END IN |
| Material | COPPER ALLOY FIRST END COUPLING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-DTL-81581 | 4/1 Identification reference U.S. Government activity |
| 4720PL0887240 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS22055B54 | 2/2 Government specification standardization U.S. Government activity |
NSN 4720-01-068-5315 is a Hose Assembly,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-068-5315: Hose Weight: 5.000 OUNCES PER LINEAR FOOT OZ; Connection Style: ROUND SECOND END; Connection Type: THREADED FIRST END; Connection Type: THREADED SECOND END. 14 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.