The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-628-0020, 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 Danfoss Power Solutions II, Llc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-628-0020 |
| Primary Part Number | 4721-6-4S |
| Item Name | Adapter,straight,tube to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HOSE COUPLING NUT |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Connection Style | GRIPPING NIPPLE (NOSE) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Outside Diameter Hose Accommodated | 0.690 INCHES SECOND END IN |
| Nominal Overall Length | 2.790 INCHES IN |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Operating Pressure | 5750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2B FIRST END |
| Material | STEEL COMP 1213 OR STEEL COMP 1137 OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| 4721-6-4S PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| 220-214 | Cnh Industrial America Llc Dba Cnh America (USA) |
| EF-S1600A-0604 PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4721-6-4 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| 320-6-4ZK | 3/2 Design control — primary reference U.S. Government activity |
| 320-6-4S | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-628-0020 is a Adapter,straight,tube to Hose, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-628-0020 has 3 manufacturer part numbers on file: 4721-6-4S (Danfoss Power Solutions II, Llc), 220-214 (Cnh Industrial America Llc Dba Cnh America), EF-S1600A-0604 (Hydrasearch Company, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 5365-00-789-8414, 4730-00-888-6931, 5330-01-037-7191. Verify interchangeability with system specifications before substitution.
Key specifications for 4721-6-4S: Furnished Items and Quantity: 1 HOSE COUPLING NUT; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Connection Style: GRIPPING NIPPLE (NOSE) SECOND END; Nominal Inside Diameter Hose Accommodated: 0.250 INCHES SECOND END IN. 17 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.