4730-01-193-7393 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Thread Piece,union — FSC 4730
Union End Thread Direction: RIGHT-HAND
Nominal Pipe Size Designation: 0.500 INCHES IN
Union End Thread Size: 1-1/2-14
Seat Type: STRAIGHT FACE
Union End Screw Thread Series Designator: UNS
Material: COPPER ALLOY 715
Identification
NSN: 4730-01-193-7393
NIIN: 011937393
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Thread Piece,union, cataloged under National Stock Number 4730-01-193-7393, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-299-06172621-791-02 PC 42APOSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-307-89262621-791-02 ASSY 67POSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-307-89272621-791-02 ASSY 66POSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-329-159015-18-0364POSSIBLE MATCH
NUT,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-330-82992621-791-02 PC-7POSSIBLE MATCH
THREAD PIECE,UNION
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2621-791-02 ASS
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
262179102-0052
3/2Design control — primary reference
U.S. Government activity
262179102
D/9Drawing number reference only
U.S. Government activity
Related Parts
4730-01-299-0617POSSIBLE MATCH
THREAD PIECE,UNION
2621-791-02 PC 42A
4730-01-307-8926POSSIBLE MATCH
THREAD PIECE,UNION
2621-791-02 ASSY 67
4730-01-307-8927POSSIBLE MATCH
THREAD PIECE,UNION
2621-791-02 ASSY 66
4730-01-329-1590POSSIBLE MATCH
NUT,UNION
15-18-0364
4730-01-330-8299POSSIBLE MATCH
THREAD PIECE,UNION
2621-791-02 PC-7
Frequently Asked Questions
What is NSN 4730-01-193-7393?
NSN 4730-01-193-7393 is a Thread Piece,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-193-7393?
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-299-0617, 4730-01-307-8926, 4730-01-307-8927. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-193-7393?
Key specifications for 4730-01-193-7393: Union End Thread Direction: RIGHT-HAND; Nominal Pipe Size Designation: 0.500 INCHES IN; Union End Thread Size: 1-1/2-14; Overall Length: 1.250 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-193-7393 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.