NSN 4730-01-623-1878 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-623-1878. Manufacturer of record part number: SMK20-1/4NPT-PD.
Also searched as4730-01-623-1878 ·
4730016231878 ·
NIIN 016231878 ·
01-623-1878 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53790 · SMK20-1/4NPT-PD
4730-01-623-1878 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Assembly,hose — FSC 4730
Connection Style: FLARED (TUBE) ALL ENDS
Nominal Overall Length: 1.38 INCHES IN
Style Designator: FLARED W/ CENTER WRENCHING FACILITY
Nominal Thread Size: 0.250 INCHES FIRST END IN
Material: STEEL CORROSION RESISTING OVERALL
Thread Series Designator: NPT FIRST END
1 manufacturer part number on file
Identification
NSN: 4730-01-623-1878
NIIN: 016231878
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: SMK20-1/4NPT-PD
Manufacturer: Stauff Corp
General Description
The Coupling Assembly,hose, cataloged under National Stock Number 4730-01-623-1878, 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 Stauff Corp. Government technical data includes 6 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. 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 4730-01-623-1878?
NSN 4730-01-623-1878 is a Coupling Assembly,hose, manufactured by Stauff Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-623-1878?
NSN 4730-01-623-1878 has 1 manufacturer part number on file: SMK20-1/4NPT-PD (Stauff Corp).
What are the specifications of SMK20-1/4NPT-PD?
Key specifications for SMK20-1/4NPT-PD: Connection Style: FLARED (TUBE) ALL ENDS; Nominal Overall Length: 1.38 INCHES IN; Style Designator: FLARED W/ CENTER WRENCHING FACILITY; Nominal Thread Size: 0.250 INCHES FIRST END IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-623-1878 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.