NSN 4730-01-549-4581 · NIIN 015494581 · Part number 3A559
W.w. Grainger, Inc. Div Government Sales Division · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 25795
Government record, cited
NSN 4730-01-549-4581 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-549-4581. Manufacturer of record part number: 3A559.
Also searched as4730-01-549-4581 ·
4730015494581 ·
NIIN 015494581 ·
01-549-4581 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 25795 · 3A559 · 453682 · 00453682
4730-01-549-4581 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Arrestor,water Hammer — FSC 4730
Overall Diameter: 1.250 INCHES NOMINAL IN
Material: STEEL CORROSION RESISTING
3 manufacturer part numbers on file
Manufacturer of record: W.w. Grainger, Inc. Div Government Sales Division
Identification
NSN: 4730-01-549-4581
NIIN: 015494581
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 3A559
Manufacturer: W.w. Grainger, Inc. Div Government Sales Division
General Description
The Arrestor,water Hammer, cataloged under National Stock Number 4730-01-549-4581, 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 W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Greenheck Fan Corporation Dba Greenheck Fan Corp (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 4730-01-549-4581?
NSN 4730-01-549-4581 is a Arrestor,water Hammer, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-549-4581?
NSN 4730-01-549-4581 has 3 manufacturer part numbers on file: 453682 (Greenheck Fan Corporation Dba Greenheck Fan Corp), 3A559 (W.w. Grainger, Inc. Div Government Sales Division), 00453682 (Greenheck Fan Corporation Dba Greenheck Fan Corp).
What are the specifications of 3A559?
Key specifications for 3A559: Overall Height: 5.250 INCHES NOMINAL IN; Overall Diameter: 1.250 INCHES NOMINAL IN; Special Features: CONNECTION MALE NPT .5 INCH; MAXIMUM PSI 156, PRESET AT 60 PSI; TEMPURATURE RANGE 33 TO 180F; STAINLESS STEEL MATERIAL IN; End Item Identification: CONTROL PANEL. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-549-4581 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.