The Plug,pipe, cataloged under National Stock Number 4730-01-574-0552, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-574-0552 |
| Primary Part Number | 1072A21 |
| Item Name | Plug,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Nominal Pipe Size for Which Designed | 0.250 INCHES IN |
| Connection Style | INVERTED FLARE |
| Core Depth | 0.688 INCHES NOMINAL IN |
| Drive End Style | RECESSED HEXAGON |
| Supplementary Features | MAX PRESSURE: 150 PSI AT 72F DEG, 150 PSI AT 250F DEG FOR STEAM |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Thread Direction | RIGHT-HAND HEAD INTERNAL |
| Nominal Thread Size | 0.250 INCHES EXTERNAL IN |
| Specification/standard Data | 96906-MS-49006 GOVERNMENT SPECIFICATION |
| Maximum Operating Temp | 72.0 FAHRENHEIT DEGF |
| Media for Which Designed | AIR AND GAS, NATURAL AND STEAM AND WATER, FRESH |
| Body Type | SOLID |
| Thread Quantity Per Inch | 18 HEAD INTERNAL |
| Material | STEEL OR IRON CAST MALLEABLE OVERALL |
| Thread Series Designator | NPTF HEAD INTERNAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-01-574-0552 is a Plug,pipe, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-574-0552 has 2 manufacturer part numbers on file: 1072A21 (Mcmaster-Carr Supply Co), 1072A21 (Mcmaster-Carr Supply Co).
Key specifications for 1072A21: Nominal Pipe Size for Which Designed: 0.250 INCHES IN; Connection Style: INVERTED FLARE; Core Depth: 0.688 INCHES NOMINAL IN; Drive End Style: RECESSED HEXAGON. 15 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.