The Tailpiece,union, cataloged under National Stock Number 4730-01-241-6954, 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 Naval Sea Systems Command. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-241-6954 |
| Primary Part Number | 5588545 ITEM FL-3 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| End Connection Type | THREADED |
| Thread Direction | RIGHT-HAND |
| Thread Size | 1/4-18 |
| Screw Thread Series Designator | NPT |
| Material | STEEL COMP 304 |
| Working Pressure and Service Type | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM HYDRAULIC OIL LBS |
| 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 |
|---|---|
| 5588545 ITEM FL-3 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 516-5588545 ITEM FL-3 | 5/9 Secondary reference Naval Sea Systems Command |
| 2300-404 ASSY B | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 516-5588545 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4730-01-241-6954 is a Tailpiece,union, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-241-6954 has 1 manufacturer part number on file: 5588545 ITEM FL-3 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-242-4513. Verify interchangeability with system specifications before substitution.
Key specifications for 5588545 ITEM FL-3: End Connection Type: THREADED; Thread Direction: RIGHT-HAND; Thread Size: 1/4-18; Screw Thread Series Designator: NPT. 6 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.