4730-01-355-3430 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Restrictor,fluid Flow — FSC 4730
Length: 0.530 INCHES NOMINAL IN
Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
Design Type: TUBULAR
Outside Diameter: 4.000 INCHES NOMINAL IN
Material: COPPER
Orifice Diameter: 0.530 INCHES NOMINAL IN
Identification
NSN: 4730-01-355-3430
NIIN: 013553430
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-355-3430, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-355-34312632-0952 ITEM 7-6POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-355-34322632-0952 ITEM 9-5POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-355-34332632-0952 ITEM 9-6POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
845-2445312 ITEM 7-5
5/2Secondary reference
U.S. Government activity
2632-0952-ITEM 7-5
3/2Design control — primary reference
U.S. Government activity
845-2445312
D/9Drawing number reference only
U.S. Government activity
2632-0952
D/9Drawing number reference only
U.S. Government activity
Related Parts
4730-01-355-3431POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
2632-0952 ITEM 7-6
4730-01-355-3432POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
2632-0952 ITEM 9-5
4730-01-355-3433POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
2632-0952 ITEM 9-6
Frequently Asked Questions
What is NSN 4730-01-355-3430?
NSN 4730-01-355-3430 is a Restrictor,fluid Flow, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-01-355-3430?
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-355-3431, 4730-01-355-3432, 4730-01-355-3433. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-01-355-3430?
Key specifications for 4730-01-355-3430: Length: 0.530 INCHES NOMINAL IN; Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: TUBULAR; Outside Diameter: 4.000 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-355-3430 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.