The Bushing,pipe, cataloged under National Stock Number 4730-00-277-1850, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-277-1850 |
| Item Name | Bushing,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Internal Screw Thread Series Designator | NPT |
| Internal Thread Direction | RIGHT-HAND |
| Style Designator | OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL) |
| Material Document and Classification | QQ-I-666, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE AND QQ-I-666, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE |
| Departure From Cited Designator | PTAK |
| Specification/standard Data | 81348-WW-P-471 GOVERNMENT SPECIFICATION |
| External Screw Thread Series Designator | NPT |
| Nondefinitive Spec/std Data | B TYPE |
| External Thread Size | 2-1/2 |
| Internal Thread Size | 1-1/4-11-1/2 |
| Material | IRON CAST UNS F22400 AND IRON CAST UNS F22200 |
| Working Pressure and Service Type | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS 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 |
| Reference | Meaning |
|---|---|
| WW-P-471 | 4/1 Identification reference U.S. Government activity |
| WW-P-471BDQBUKG | 2/2 Government specification standardization U.S. Government activity |
NSN 4730-00-277-1850 is a Bushing,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-277-1850: Internal Screw Thread Series Designator: NPT; Internal Thread Direction: RIGHT-HAND; Style Designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL); Material Document and Classification: QQ-I-666, GRADE 1 FED SPEC 1ST MATERIAL RESPONSE AND QQ-I-666, GRADE 2 FED SPEC 2ND MATERIAL RESPONSE. 13 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.