The Tailpiece,union, cataloged under National Stock Number 4730-01-274-9545, 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 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-274-9545 |
| Primary Part Number | 3384-B-160 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 0.250 INCHES IN |
| End Connection Type | BRAZED |
| Material | COPPER ALLOY 922 |
| 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 |
|---|---|
| 3384-B-160 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 803-4384536-1XXX-22 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 803-4384536-1XXX-22 PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| Reference | Meaning |
|---|---|
| 803-4384536 | D/9 Drawing number reference only U.S. Government activity |
| 803-4384536-1XXX-22 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-274-9545 is a Tailpiece,union, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-274-9545 has 3 manufacturer part numbers on file: 3384-B-160 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 803-4384536-1XXX-22 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 803-4384536-1XXX-22 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).
Key specifications for 3384-B-160: Nominal Pipe Size Designation: 0.250 INCHES IN; End Connection Type: BRAZED; End Item Identification: NUCLEAR POWER PLANT; Material: COPPER ALLOY 922. 3 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.