The Tailpiece,union, cataloged under National Stock Number 4730-01-262-4972, 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 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-262-4972 |
| Primary Part Number | 1600-005 PIECE 19 1/2IN SCH-80 |
| 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 | 0.500 INCHES IN |
| End Connection Type | WELDED |
| Seat Type | STRAIGHT FACE |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 1600-005 PIECE 19 1/2IN SCH-80 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 803-4384536 | D/9 Drawing number reference only U.S. Government activity |
| 803-4384536-8XXX-24 SCH-80 | 5/2 Secondary reference U.S. Government activity |
| 1600-005 | D/9 Drawing number reference only Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 4730-01-262-4972 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 4730-01-262-4972 has 1 manufacturer part number on file: 1600-005 PIECE 19 1/2IN SCH-80 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-262-4973, 4730-01-262-5308, 5826-01-473-1867. Verify interchangeability with system specifications before substitution.
Key specifications for 1600-005 PIECE 19 1/2IN SCH-80: Nominal Pipe Size Designation: 0.500 INCHES IN; End Connection Type: WELDED; Seat Type: STRAIGHT FACE; Material: COPPER ALLOY. 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.