The Hose Assembly,air Breathing, cataloged under National Stock Number 4720-01-417-5844, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Hydraflow. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-417-5844 |
| Primary Part Number | 55104C0720A |
| Item Name | Hose Assembly,air Breathing |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Measuring Method and Length | 72.000 INCHES NOMINAL OVERALL IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE BOTH END COUPLINGS |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE REINFORCING WIRE |
| Minimum Inside Bending Radius | 1.000 INCHES IN |
| Connection Type | THREADED BOTH ENDS |
| Style Designator | HELICALLY WOUND CONTINOUS WIRE SUPPORTED |
| Coupling Style | THREADED INTERNAL BOTH ENDS |
| Material Document and Classification | ZZ-R-765,CLASS 2A,GRADE 70 FED SPEC SINGLE MATERIAL RESPONSE FIRST PLY A |
| Material Document and Classification | ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE REINFORCING WIRE |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BOTH END COUPLINGS |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Nominal Thread Size | 0.500 INCHES BOTH ENDS IN |
| Inside Diameter | 0.292 INCHES NOMINAL FIRST END IN |
| Surface Treatment | ANODIZE BOTH END COUPLINGS |
| Surface Treatment | PASSIVATE REINFORCING WIRE |
| Material | RUBBER SILICONE CLASS Q FIRST PLY |
| Material | STEEL CORROSION RESISTING REINFORCING WIRE |
| Material | PLASTIC POLYAMIDE NYLON COVER |
| Material | ALUMINUM ALLOY BOTH END COUPLINGS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) BOTH ENDS |
| 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 |
|---|---|
| 55104C0720A PRIMARY | Hydraflow (USA) |
| Reference | Meaning |
|---|---|
| 7D0311 | D/9 Drawing number reference only U.S. Government activity |
| 55104 | D/9 Drawing number reference only Hydraflow |
| 7D0311C0720A | 5/2 Secondary reference U.S. Government activity |
NSN 4720-01-417-5844 is a Hose Assembly,air Breathing, manufactured by Hydraflow, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-417-5844 has 1 manufacturer part number on file: 55104C0720A (Hydraflow).
Key specifications for 55104C0720A: Measuring Method and Length: 72.000 INCHES NOMINAL OVERALL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE BOTH END COUPLINGS; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE REINFORCING WIRE; Minimum Inside Bending Radius: 1.000 INCHES IN. 21 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.