The Tailpiece,union, cataloged under National Stock Number 4730-01-137-9362, 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 Triumph Manufacturing Company, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-137-9362 |
| Primary Part Number | 2621-791-01PC56 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Manufacturing Company, Inc. |
| Status | ACTIVE |
| Union Outside Diameter | 1.930 INCHES NOMINAL IN |
| Nominal Pipe Size Designation | 1.000 INCHES IN |
| Flange Thickness | 0.328 INCHES NOMINAL IN |
| End Connection Type | WELDED |
| Seat Type | GASKET |
| Material | STEEL COMP 304 |
| Flange Outside Diameter | 2.188 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2621-791-01PC56 PRIMARY | Triumph Manufacturing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2621-791-01 | D/9 Drawing number reference only U.S. Government activity |
| 2621-791-01ASSY | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2621-791-01 PIE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2621-791-01PC56 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-137-9362 is a Tailpiece,union, manufactured by Triumph Manufacturing Company, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-137-9362 has 1 manufacturer part number on file: 2621-791-01PC56 (Triumph Manufacturing Company, Inc.).
Key specifications for 2621-791-01PC56: Union Outside Diameter: 1.930 INCHES NOMINAL IN; Nominal Pipe Size Designation: 1.000 INCHES IN; Flange Thickness: 0.328 INCHES NOMINAL IN; End Connection Type: WELDED. 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.
NSN 4730-01-137-9362 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.