The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-00-692-3940, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-692-3940 |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 72.000 INCHES MINIMUM EXTENDED WORKING AND 77.760 INCHES MAXIMUM EXTENDED WORKING IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | COUPLING FIRST END |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Coupling Style | CONNECTOR, OXYGEN HOSE TO REGULATOR W/ CLIP (NOTE: APPLICABLE TO HOSE ASSEMBLY, AIR BREATHING ONLY.) FIRST END |
| Coupling Style | OXYGEN HOSE CLAMP SECOND END |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.250 INCHES MINIMUM AND 0.250 INCHES MINIMUM AND 0.375 INCHES MAXIMUM0.375 INCHES MAXIMUM IN |
| Outside Diameter | 1.094 INCHES MINIMUM AND 1.250 INCHES MAXIMUM BOTH ENDS IN |
| Features Provided | OZONE RESISTANT |
| Inside Diameter | 0.750 INCHES MINIMUM AND 1.250 INCHES MAXIMUM BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| E20818 | 5/9 Secondary reference B/e Aerospace Systems Gmbh Div Life Support Systems Europe |
| MS22055A72 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-81581 | 5/9 Secondary reference U.S. Government activity |
| MIL-H-81581A | 5/9 Secondary reference U.S. Government activity |
| AN6003-72A | 5/1 Secondary reference U.S. Government activity |
| 8148650 | A/1 Packaging identification reference U.S. Government activity |
| MIL-DTL-81581 | 4/1 Identification reference U.S. Government activity |
NSN 4720-00-692-3940 is a Hose Assembly,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-00-692-3940: Measuring Method and Length: 72.000 INCHES MINIMUM EXTENDED WORKING AND 77.760 INCHES MAXIMUM EXTENDED WORKING IN; Connection Type: FLANGE SECOND END; Connection Type: COUPLING FIRST END; Style Designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED. 11 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.
NSN 4720-00-692-3940 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.