NSN 4730-01-454-6540 · NIIN 014546540 · Part number ML3-H21
Tuthill Corp Hansen Coupling Div · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 73992
Government record, cited
NSN 4730-01-454-6540 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-454-6540. Manufacturer of record part number: ML3-H21.
Also searched as4730-01-454-6540 ·
4730014546540 ·
NIIN 014546540 ·
01-454-6540 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 73992 · ML3-H21 · ASC1254510
4730-01-454-6540 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Half,quick Disconnect — FSC 4730
Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Leg Length: 2.560 INCHES MAXIMUM IN
Material: STEEL CORROSION RESISTING BODY
Thread Series Designator: NPT ALL ENDS
1 manufacturer part number on file
Manufacturer of record: Tuthill Corp Hansen Coupling Div
Identification
NSN: 4730-01-454-6540
NIIN: 014546540
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: ML3-H21
Manufacturer: Tuthill Corp Hansen Coupling Div
General Description
The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-454-6540, 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 Tuthill Corp Hansen Coupling Div. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
4730-00-001-0009
COUPLING,TUBE
Related Parts in Pipe, Tubing, Hose, and Fittings
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
D10008-08
4730-00-001-0009
COUPLING,TUBE
H10008-12
Frequently Asked Questions
What is NSN 4730-01-454-6540?
NSN 4730-01-454-6540 is a Coupling Half,quick Disconnect, manufactured by Tuthill Corp Hansen Coupling Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-454-6540?
NSN 4730-01-454-6540 has 1 manufacturer part number on file: ML3-H21 (Tuthill Corp Hansen Coupling Div).
What are the specifications of ML3-H21?
Key specifications for ML3-H21: Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION; Leg Length: 2.560 INCHES MAXIMUM IN; Special Features: SECOND END QUICK DISCONNECT; Material: STEEL CORROSION RESISTING BODY. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-454-6540 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.