NSN 4730-01-312-5730 · NIIN 013125730 · Part number 21128
Tulsa Winch, Inc. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 75096
Government record, cited
NSN 4730-01-312-5730 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-312-5730. Manufacturer of record part number: 21128.
Also searched as4730-01-312-5730 ·
4730013125730 ·
NIIN 013125730 ·
01-312-5730 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 75096 · 21128
4730-01-312-5730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Fitting,lubrication — FSC 4730
Nominal Thread Size: 0.125 INCHES IN
Screw Thread Series Designator: NPT
Material: STEEL OVERALL
1 manufacturer part number on file
Manufacturer of record: Tulsa Winch, Inc.
Identification
NSN: 4730-01-312-5730
NIIN: 013125730
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 21128
Manufacturer: Tulsa Winch, Inc.
General Description
The Fitting,lubrication, cataloged under National Stock Number 4730-01-312-5730, 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 Tulsa Winch, Inc.. Government technical data includes 3 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. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-312-5730 is a Fitting,lubrication, manufactured by Tulsa Winch, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-312-5730?
NSN 4730-01-312-5730 has 1 manufacturer part number on file: 21128 (Tulsa Winch, Inc.).
What NSN replaces 4730-01-312-5730?
4 possible matches (shared part number, not a government interchangeability claim): 4810-01-400-2080, 4810-01-400-3189, 3040-01-400-6065. Verify interchangeability with system specifications before substitution.
What are the specifications of 21128?
Key specifications for 21128: Nominal Thread Size: 0.125 INCHES IN; Special Features: E/I 1905-01-154-1191; Screw Thread Series Designator: NPT; Material: STEEL OVERALL. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-312-5730 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.