The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-277-7047, 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 Hydrasearch Company, Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-277-7047 |
| Primary Part Number | 4-2021-20-20 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 2.359 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Nominal Thread Size | 1.250 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 2A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | NICKEL AND COPPER OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | NPTF SECOND 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 |
|---|---|
| 0103-20-20NA | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| 4-2021-20-20 PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4-2021-20-20 | 3/9 Design control — primary reference Danfoss Power Solutions II, Llc |
| 0103-20-20NA | 5/9 Secondary reference U.S. Government activity |
| 282-7804-802401PCF26 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-277-7047 is a Adapter,straight,pipe to Tube, manufactured by Hydrasearch Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-277-7047 has 2 manufacturer part numbers on file: 0103-20-20NA (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 4-2021-20-20 (Hydrasearch Company, Llc).
Key specifications for 4-2021-20-20: Connection Style: FLARED (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 2.359 INCHES IN; Connection Type: THREADED EXTERNAL PIPE SECOND END. 14 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.