The Thread Piece,union, cataloged under National Stock Number 4730-01-241-6955, 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 Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-241-6955 |
| Primary Part Number | 215686 PC 402 |
| Item Name | Thread Piece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Union End Thread Direction | RIGHT-HAND |
| Nominal Pipe Size Designation | 0.250 INCHES IN |
| End Connection Type | WELDED |
| Union End Thread Size | 1/4-18 |
| Seat Type | STRAIGHT FACE |
| Union End Screw Thread Series Designator | NPT |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 215686 PC 402 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 552-5588537 ITEM 601 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2300-3340 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 552-5588537 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-241-6955 is a Thread Piece,union, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-241-6955 has 2 manufacturer part numbers on file: 215686 PC 402 (Huntington Ingalls Inc Div Newport News Shipbuilding), 552-5588537 ITEM 601 (Naval Sea Systems Command).
Key specifications for 215686 PC 402: Union End Thread Direction: RIGHT-HAND; Nominal Pipe Size Designation: 0.250 INCHES IN; End Connection Type: WELDED; Union End Thread Size: 1/4-18. 7 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.