The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-513-9223, 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 23 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-513-9223 |
| Primary Part Number | 7556807 AY97 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 31.500 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Temp Rating | -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 1.750 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 2ND LAYER BRAIDED POLYAMIDE CORD AND 3RD LAYER MOLDED POLYURETHANE AND 1ST LAYER BRAIDED STEEL WIRE |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.760 INCHES NOMINAL IN |
| Operating Pressure | 1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | REUSABLE END FITTINGS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Exterior Color | BLUE |
| Inside Diameter | 0.410 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 5000.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 16 FIRST END |
| Outer Covering Environmental Protection | FIRE RESISTANT |
| 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 |
|---|---|
| 7556807 AY97 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7556807 ASSY 97 | 5/9 Secondary reference Naval Sea Systems Command |
| 7556811 | D/9 Drawing number reference only Naval Sea Systems Command |
| 7556807 ASSY 97 | 5/9 Secondary reference Aeroquip Corp Industrial Products Group Marketing Dept |
| 593-7556811 PC 28 | 5/9 Secondary reference Naval Sea Systems Command |
| 7556807 | D/9 Drawing number reference only Naval Sea Systems Command |
| 593-7556807 ASSY 97 | 5/9 Secondary reference Naval Sea Systems Command |
| 7556811 PC 28 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4720-01-513-9223 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-513-9223 has 1 manufacturer part number on file: 7556807 AY97 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 4720-01-513-9226, 4720-01-513-9231, 4730-01-523-7640. Verify interchangeability with system specifications before substitution.
Key specifications for 7556807 AY97: Measuring Method and Length: 31.500 INCHES NOMINAL EXCLUDING END FITTINGS IN; Temp Rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 1.750 INCHES IN; Connection Style: SWIVEL NUT FLARE FIRST END. 23 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.