The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-407-0686, 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 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-407-0686 |
| Primary Part Number | 57012-3-2 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Hydraflow |
| Status | ACTIVE |
| Measuring Method and Length | 17.000 INCHES NOMINAL OVERALL IN |
| Connection Style | PUSH (INTERNAL) SECOND END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Criticality Code Justification | FEAT |
| Connection Type | INTERNAL QUICK DISCONNECT SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | OXYGEN, GASEOUS SINGLE RESPONSE |
| Thread Class | 3B FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| MBEU148020 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| MBEU148020 | Martin-Baker Aircraft Company Limited (GBR) |
| MBEU148020 | Martin-Baker America, Inc (USA) |
| 57012-3-2 PRIMARY | Hydraflow (USA) |
NSN 4720-01-407-0686 is a Hose Assembly,nonmetallic, manufactured by Hydraflow, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-407-0686 has 4 manufacturer part numbers on file: MBEU148020 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), MBEU148020 (Martin-Baker Aircraft Company Limited), MBEU148020 (Martin-Baker America, Inc), 57012-3-2 (Hydraflow).
Key specifications for 57012-3-2: Measuring Method and Length: 17.000 INCHES NOMINAL OVERALL IN; Connection Style: PUSH (INTERNAL) SECOND END; Connection Style: SWIVEL NUT FLARE FIRST END; End Connection Design: STRAIGHT FIRST END. 16 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.