NSN 4730-01-323-7730 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-323-7730. Manufacturer of record part number: Q503T-4.
Also searched as4730-01-323-7730 ·
4730013237730 ·
NIIN 013237730 ·
01-323-7730 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 79926 · Q503T-4 · MD53-4SS · 53T-4-SS
4730-01-323-7730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Thread Piece,union — FSC 4730
Union End Thread Direction: RIGHT-HAND
End Connection Type: THREADED
Union End Thread Size: 3/4-14
Thread Direction: RIGHT-HAND
Thread Size: 2-12
Screw Thread Series Designator: NPTF
Union End Screw Thread Series Designator: NPT
Identification
NSN: 4730-01-323-7730
NIIN: 013237730
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: Q503T-4
Manufacturer: Ssp Fittings Corp
General Description
The Thread Piece,union, cataloged under National Stock Number 4730-01-323-7730, 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 Ssp Fittings Corp. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-323-7730?
NSN 4730-01-323-7730 is a Thread Piece,union, manufactured by Ssp Fittings Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-323-7730?
NSN 4730-01-323-7730 has 2 manufacturer part numbers on file: Q503T-4 (Ssp Fittings Corp), MD53-4SS (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).
What are the specifications of Q503T-4?
Key specifications for Q503T-4: Union End Thread Direction: RIGHT-HAND; End Connection Type: THREADED; Union End Thread Size: 3/4-14; Overall Length: 1.688 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-323-7730 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.