The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-452-0689, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-452-0689 |
| Primary Part Number | 6405267-ASSY129A |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES FIRST END |
| Flow Angle | 90.0 DEGREES SECOND END |
| Measuring Method and Length | 16.500 INCHES NOMINAL WORKING IN |
| Temp Rating | -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 12.000 INCHES IN |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END |
| End Connection Design | ELBOW FIRST END |
| Layer Composition and Location | 2ND LAYER BRAIDED WIRE AND 3RD LAYER BRAIDED WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC |
| Angle Between Rigid Elbow Fittings in Deg | 65.0 |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.562 INCHES NOMINAL IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 2.313 INCHES FIRST END IN |
| Inside Diameter | 1.013 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Class | 2A FIRST END A |
| Burst Test Pressure | 8000.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Series Designator | UN FIRST END |
| 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 |
|---|---|
| 6405267-ASSY129A PRIMARY | Naval Sea Systems Command (USA) |
| DF331095 ASSY-129A | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 6405267 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF331095 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4720-01-452-0689 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-452-0689 has 2 manufacturer part numbers on file: 6405267-ASSY129A (Naval Sea Systems Command), DF331095 ASSY-129A (Huntington Ingalls Inc Div Newport News Shipbuilding).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-452-0940, 4720-01-452-0972. Verify interchangeability with system specifications before substitution.
Key specifications for 6405267-ASSY129A: Flow Angle: 90.0 DEGREES FIRST END; Flow Angle: 90.0 DEGREES SECOND END; Measuring Method and Length: 16.500 INCHES NOMINAL WORKING IN; Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF. 22 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.