NSN 4730-00-004-9576 · NIIN 000049576 · Part number 2122-5554-001
Bae Systems (operations) Limited · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE K0656
Government record, cited
NSN 4730-00-004-9576 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-004-9576. Manufacturer of record part number: 2122-5554-001.
Also searched as4730-00-004-9576 ·
4730000049576 ·
NIIN 000049576 ·
00-004-9576 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE K0656 · 2122-5554-001
4730-00-004-9576 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Packing Nut — FSC 4730
Width Across Flats: 0.750 INCHES NOMINAL IN
Thread Length: 0.438 INCHES NOMINAL IN
Style Designator: HEXAGON, EXTERNAL THREAD, BOSS
Thread Direction: RIGHT-HAND
Casehardening Indicator: NOT CASEHARDENED
Thread Size: 0.563-18
Screw Thread Series Designator: UNF
Identification
NSN: 4730-00-004-9576
NIIN: 000049576
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 2122-5554-001
Manufacturer: Bae Systems (operations) Limited
General Description
The Packing Nut, cataloged under National Stock Number 4730-00-004-9576, 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 Bae Systems (operations) Limited. Government technical data includes 11 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 4730-00-004-9576?
NSN 4730-00-004-9576 is a Packing Nut, manufactured by Bae Systems (operations) Limited, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-00-004-9576?
NSN 4730-00-004-9576 has 1 manufacturer part number on file: 2122-5554-001 (Bae Systems (operations) Limited).
What are the specifications of 2122-5554-001?
Key specifications for 2122-5554-001: Width Across Flats: 0.750 INCHES NOMINAL IN; Thread Length: 0.438 INCHES NOMINAL IN; Style Designator: HEXAGON, EXTERNAL THREAD, BOSS; Overall Length: 0.680 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-004-9576 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.