The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-586-9801, 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 Mcmaster-Carr Supply Co. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-586-9801 |
| Primary Part Number | 53055K221 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Nominal Length | 0.937 INCHES SECOND END IN |
| Nominal Length | 1.093 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Type | UNTHREADED TUBE W/FORMED END SECOND END |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | AIR FIRST RESPONSE |
| Media for Which Designed | FLUID SECOND RESPONSE |
| Media for Which Designed | WATER THIRD RESPONSE |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Thread Series Designator | NPT 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 |
|---|---|
| 53055K221 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 5116K88 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
| 500K3664 | 3/9 Design control — primary reference Drs Environmental Systems Inc |
| 500K3664 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-586-9801 is a Adapter,straight,pipe to Tube, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-586-9801 has 1 manufacturer part number on file: 53055K221 (Mcmaster-Carr Supply Co).
Key specifications for 53055K221: Nominal Length: 0.937 INCHES SECOND END IN; Nominal Length: 1.093 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL PIPE FIRST END; Connection Type: UNTHREADED TUBE W/FORMED END SECOND END. 12 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.