NSN 4730-01-588-1281 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-588-1281. Manufacturer of record part number: 12-8HMK4S.
Also searched as4730-01-588-1281 ·
4730015881281 ·
NIIN 015881281 ·
01-588-1281 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 30780 · 12-8HMK4S
4730-01-588-1281 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Union,tube — FSC 4730
Connection Style: FLARED (GAS FITTING) FIRST END
Connection Style: FLARED (GAS FITTING) SECOND END
Connection Type: THREADED EXTERNAL TUBE FIRST END
Connection Type: THREADED EXTERNAL TUBE SECOND END
Nominal Thread Size: 0.500 INCHES SECOND END IN
Nominal Thread Size: 0.750 INCHES FIRST END IN
Surface Treatment: ZINC OVERALL
Identification
NSN: 4730-01-588-1281
NIIN: 015881281
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 12-8HMK4S
Manufacturer: Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
General Description
The Union,tube, cataloged under National Stock Number 4730-01-588-1281, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 10 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. Current acquisition status: Active.
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
No interchangeability data on file.
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 4730-01-588-1281?
NSN 4730-01-588-1281 is a Union,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-588-1281?
NSN 4730-01-588-1281 has 2 manufacturer part numbers on file: 12-8HMK4S (Rbsl Washington), 12-8HMK4S (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
What are the specifications of 12-8HMK4S?
Key specifications for 12-8HMK4S: Connection Style: FLARED (GAS FITTING) FIRST END; Connection Style: FLARED (GAS FITTING) SECOND END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED EXTERNAL TUBE SECOND END. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-588-1281 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.