The Tailpiece,union, cataloged under National Stock Number 4730-01-191-8686, 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 Portland Valve Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-191-8686 |
| Primary Part Number | E-2109 PIECE 39 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Portland Valve Llc |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 1.000 INCHES IN |
| End Connection Type | WELDED |
| Seat Type | GASKET |
| Material | COPPER ALLOY 715 |
| 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 |
|---|---|
| E-2109 PIECE 39 PRIMARY | Portland Valve Llc (USA) |
| 045-0298-17 PRIMARY | Portland Valve Llc (USA) |
| Reference | Meaning |
|---|---|
| E-2109 | D/9 Drawing number reference only Portland Valve Llc |
NSN 4730-01-191-8686 is a Tailpiece,union, manufactured by Portland Valve Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-191-8686 has 2 manufacturer part numbers on file: E-2109 PIECE 39 (Portland Valve Llc), 045-0298-17 (Portland Valve Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-191-8687, 4730-01-191-8688, 4730-01-191-9579. Verify interchangeability with system specifications before substitution.
Key specifications for E-2109 PIECE 39: Nominal Pipe Size Designation: 1.000 INCHES IN; End Connection Type: WELDED; Seat Type: GASKET; End Item Identification: VALVES. 4 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.