The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-516-8063, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Appleton Marine Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-516-8063 |
| Primary Part Number | 6304521-39 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Measuring Method and Length | 37.000 INCHES NOMINAL WORKING IN |
| Minimum Inside Bending Radius | 7.000 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER SPIRALLY LAID STEEL WIRE AND 2ND LAYER SPIRALLY LAID STEEL WIRE AND 3RD LAYER SPIRALLY LAID STEEL WIRE AND 4TH LAYER MOLDED RUBBER, SYNTHETIC |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.890 INCHES NOMINAL IN |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | NONSKIVE |
| End Fitting Component and Material | COMPLETE FITTING STEEL CORROSION RESISTING ALL ENDS |
| Seat Angle | 37.0 DEGREES AND 45.0 DEGREES FIRST END |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Burst Test Pressure | 18000.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 6304521-39 | Appleton Marine Inc (USA) |
| 6304521-40 | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| F34106C06C-08-08-08-37.00 | 5/9 Secondary reference U.S. Government activity |
| 6304521 | D/9 Drawing number reference only U.S. Government activity |
| F72206C06C-08-08-08-37.00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-516-8063 is a Hose Assembly,nonmetallic, manufactured by Appleton Marine Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-516-8063 has 2 manufacturer part numbers on file: 6304521-39 (Appleton Marine Inc), 6304521-40 (Appleton Marine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-516-8346, 4720-01-700-3496. Verify interchangeability with system specifications before substitution.
Key specifications for 6304521-39: Measuring Method and Length: 37.000 INCHES NOMINAL WORKING IN; Minimum Inside Bending Radius: 7.000 INCHES IN; 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.