NSN 4730-01-193-7392 · NIIN 011937392 · Part number 2621-791-05 PC20
Derbyshire Machine & Tool Co · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 71905
Government record, cited
NSN 4730-01-193-7392 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-193-7392. Manufacturer of record part number: 2621-791-05 PC20.
Nearby stock numbers← 4730-01-193-7391
·
4730-01-193-7393 Thread Piece, Union →
4730-01-193-7392 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Tailpiece,union — FSC 4730
Union Outside Diameter: 4.328 INCHES NOMINAL IN
Nominal Pipe Size Designation: 1.500 INCHES IN
End Connection Type: WELDED
Seat Type: STRAIGHT FACE
Material: STEEL COMP 304
3 manufacturer part numbers on file
Manufacturer of record: Derbyshire Machine & Tool Co
Identification
NSN: 4730-01-193-7392
NIIN: 011937392
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 2621-791-05 PC20
Manufacturer: Derbyshire Machine & Tool Co
General Description
The Tailpiece,union, cataloged under National Stock Number 4730-01-193-7392, 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 Derbyshire Machine & Tool Co. Government technical data includes 5 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-193-7392 is a Tailpiece,union, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-193-7392?
NSN 4730-01-193-7392 has 3 manufacturer part numbers on file: 845-4775989 ITEM 31 (Naval Sea Systems Command), 2621-791-05 PC20 (Derbyshire Machine & Tool Co), 2621-791-05 PC20 (Triumph Manufacturing Company, Inc.).
What NSN replaces 4730-01-193-7392?
7 possible matches (shared part number, not a government interchangeability claim): 4730-01-307-8429, 4730-01-307-8430, 4730-01-307-8431. Verify interchangeability with system specifications before substitution.
What are the specifications of 2621-791-05 PC20?
Key specifications for 2621-791-05 PC20: Union Outside Diameter: 4.328 INCHES NOMINAL IN; Nominal Pipe Size Designation: 1.500 INCHES IN; End Connection Type: WELDED; Overall Length: 2.000 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-193-7392 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.