The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-417-4873, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-417-4873 |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 132.000 INCHES NOMINAL OVERALL IN |
| Connection Style | ROUND SECOND END |
| Connection Type | THREADED FIRST END |
| Connection Type | THREADED SECOND 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 |
| Cross-Sectional Shape Style | ROUNDROUND |
| Wall Thickness | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Features Provided | OZONE RESISTANT |
| Specification/standard Data | 96906-MS22055 GOVERNMENT STANDARD |
| Nondefinitive Spec/std Data | A STYLE |
| Inside Diameter | 0.750 INCHES NOMINAL FIRST END IN |
| End Overall Length | 1.000 INCHES NOMINAL SECOND END IN |
| End Inside Diameter | 0.750 INCHES NOMINAL SECOND END IN |
| Material | RUBBER SYNTHETIC FIRST PLY |
| Material | STEEL REINFORCING WIRE |
| Material | COTTON SECOND PLY |
| Material | PLASTIC POLYAMIDE NYLON COVER |
| 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 |
|---|---|
| HC200A132 | 5/1 Secondary reference Herbert Cooper Co Inc |
| MIL-DTL-81581 | 4/1 Identification reference U.S. Government activity |
| MS22055A132 | 2/2 Government specification standardization U.S. Government activity |
| REDAR-A10061-16 | 5/1 Secondary reference R.e. Darling Co., Inc. |
| MS22055 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-417-4873 is a Hose Assembly,air Breathing, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-417-4901, 4720-01-672-5058. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-01-417-4873: Measuring Method and Length: 132.000 INCHES NOMINAL OVERALL IN; Connection Style: ROUND SECOND END; Connection Type: THREADED FIRST END; Connection Type: THREADED SECOND END. 18 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 4720-01-417-4873 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.