The Coupling,hose, cataloged under National Stock Number 4730-00-473-4077, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-473-4077 |
| Primary Part Number | 564-5501-936646PCF |
| Item Name | Coupling,hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Connection Style | PLAIN (HOSE) ALL ENDS |
| Nominal Overall Length | 3.500 INCHES IN |
| Connection Type | THREADED EXTERNAL HOSE ALL ENDS |
| Nominal Thread Size | 2.500 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 7-1/2 ALL ENDS |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NH ALL 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 |
|---|---|
| 564-5501-936646PCF PRIMARY | Naval Sea Systems Command (USA) |
| K1-5501-1000372PCF PRIMARY | Naval Sea Systems Command (USA) |
| T1-5501-1286391PCG PRIMARY | Naval Sea Systems Command (USA) |
| 571-5501-1302692PC6 PRIMARY | Naval Sea Systems Command (USA) |
| T1-5501-1283691PCG PRIMARY | Naval Sea Systems Command (USA) |
| 390120PCF PRIMARY | Naval Sea Systems Command (USA) |
| 533033PCF PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 3691-52PC6 | 3/2 Design control — primary reference U.S. Government activity |
| 3091-29PCF | 5/9 Secondary reference U.S. Government activity |
| 2466-16PCF | 5/9 Secondary reference U.S. Government activity |
| 3991-30PCG | 5/9 Secondary reference U.S. Government activity |
| 2066-50PCF | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-473-4077 is a Coupling,hose, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-473-4077 has 7 manufacturer part numbers on file: 564-5501-936646PCF (Naval Sea Systems Command), K1-5501-1000372PCF (Naval Sea Systems Command), T1-5501-1286391PCG (Naval Sea Systems Command), 571-5501-1302692PC6 (Naval Sea Systems Command), T1-5501-1283691PCG (Naval Sea Systems Command) and 2 more.
Key specifications for 564-5501-936646PCF: Connection Style: PLAIN (HOSE) ALL ENDS; Nominal Overall Length: 3.500 INCHES IN; Connection Type: THREADED EXTERNAL HOSE ALL ENDS; Nominal Thread Size: 2.500 INCHES ALL ENDS IN. 7 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.