NSN 4730-01-646-7993 · NIIN 016467993 · Part number 801-7549599 ASSY 45
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-646-7993 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-646-7993. Manufacturer of record part number: 801-7549599 ASSY 45.
Also searched as4730-01-646-7993 ·
4730016467993 ·
NIIN 016467993 ·
01-646-7993 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 801-7549599 ASSY 45
4730-01-646-7993 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Restrictor Unit,fluid Flow — FSC 4730
Pressure Rating: 1050.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
Design Type: STRAIGHT
Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
Material: NICKEL ALLOY 400 BODY
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4730-01-646-7993
NIIN: 016467993
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 801-7549599 ASSY 45
Manufacturer: Naval Sea Systems Command
General Description
The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-646-7993, 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 Naval Sea Systems Command. 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. 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 4730-01-646-7993?
NSN 4730-01-646-7993 is a Restrictor Unit,fluid Flow, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-646-7993?
NSN 4730-01-646-7993 has 1 manufacturer part number on file: 801-7549599 ASSY 45 (Naval Sea Systems Command).
What are the specifications of 801-7549599 ASSY 45?
Key specifications for 801-7549599 ASSY 45: Pressure Rating: 1050.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Design Type: STRAIGHT; Material Document and Classification: QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED; Overall Length: 30.00 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-646-7993 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.
What is the DEMIL code for NSN 4730-01-646-7993?
NSN 4730-01-646-7993 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.