The Bushing,pipe, cataloged under National Stock Number 4730-01-585-2356, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-585-2356 |
| Primary Part Number | 4429K422 |
| Item Name | Bushing,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Working Temp and Service Type | 400.0 DEG FAHRENHEIT MAXIMUM STEAM |
| Internal Screw Thread Series Designator | NPT |
| Internal Thread Direction | RIGHT-HAND |
| Supplementary Features | MAXIMUM PRESSURE AT 72 DEG F IS 200.0 PSI; 1/4 IN INTERNAL HAS 18 THREADS PER INCH, 0.40 IN THREAD ENGAGEMENT; 1/2 IN EXTERNAL HAS 14 THREADS PER INCH, 0.53 IN THREAD ENGAGEMENT IN |
| Style Designator | OUTSIDE HEXAGON |
| Specification/standard Data | 80204-ANSI B1 20 1 AND ANSI B16 15 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION AND 81346-ASTM B584 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION AND 05047-ASME B1 20 1 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| External Screw Thread Series Designator | NPT |
| External Thread Size | 0.500 |
| Internal Thread Size | 0.250 |
| Material | COPPER ALLOY |
| Working Pressure and Service Type | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM STEAM LBS |
| External Thread Direction | RIGHT-HAND |
| 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 |
|---|---|
| 4429K422 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 4730-01-585-2356 is a Bushing,pipe, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-585-2356 has 1 manufacturer part number on file: 4429K422 (Mcmaster-Carr Supply Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-593-9673. Verify interchangeability with system specifications before substitution.
Key specifications for 4429K422: Working Temp and Service Type: 400.0 DEG FAHRENHEIT MAXIMUM STEAM; Internal Screw Thread Series Designator: NPT; Internal Thread Direction: RIGHT-HAND; Supplementary Features: MAXIMUM PRESSURE AT 72 DEG F IS 200.0 PSI; 1/4 IN INTERNAL HAS 18 THREADS PER INCH, 0.40 IN THREAD ENGAGEMENT; 1/2 IN EXTERNAL HAS 14 THREADS PER INCH, 0.53 IN THREAD ENGAGEMENT IN. 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.