The Nut,tube Coupling, cataloged under National Stock Number 4730-01-061-2991, 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 Controls, Llc Dba Triumph Controls, Llc. Government technical data includes 12 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 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 | 4730-01-061-2991 |
| Primary Part Number | 10193-3 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Triumph Controls, Llc Dba Triumph Controls, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.562 INCHES IN |
| Nut Height | 0.475 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL EXCEPT INSERT |
| Material | ALUMINUM ALLOY NUT |
| Smallest Inside Diameter | 0.337 INCHES MINIMUM AND 0.357 INCHES MAXIMUM IN |
| Nominal Tube Outside Diameter | 0.714 INCHES IN |
| 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 |
|---|---|
| 10193-3 PRIMARY | Triumph Controls, Llc Dba Triumph Controls, Llc (USA) |
NSN 4730-01-061-2991 is a Nut,tube Coupling, manufactured by Triumph Controls, Llc Dba Triumph Controls, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-061-2991 has 1 manufacturer part number on file: 10193-3 (Triumph Controls, Llc Dba Triumph Controls, Llc).
4 possible matches (shared part number, not a government interchangeability claim): 5998-01-150-6078, 5355-01-225-5994, 4820-01-396-0633. Verify interchangeability with system specifications before substitution.
Key specifications for 10193-3: Width Across Flats: 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.562 INCHES IN. 12 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.