Restrictor, Fluid Flow 4730-01-203-5203 NSN 4730-01-203-5203 · NIIN 012035203 · Part number B1397D
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 61208
NSN 4730-01-203-5203 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-203-5203. Manufacturer of record part number: B1397D .
Also searched as
4730-01-203-5203 ·
4730012035203 ·
NIIN 012035203 ·
01-203-5203 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 61208 · B1397D
Nearby stock numbers
← 4730-01-203-5143 Plug, Pipe
·
4730-01-203-5205 Nut, Union →
4730-01-203-5203 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Restrictor,fluid Flow — FSC 4730 1 manufacturer part number on file Manufacturer of record: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Identification
NSN: 4730-01-203-5203
NIIN: 012035203
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: B1397D
Manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
General Description
The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-203-5203, 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 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter Value NSN 4730-01-203-5203 Primary Part Number B1397D Item Name Restrictor,fluid Flow FSC / FSG 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings Manufacturer Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic Status ACTIVE
Lifecycle & Compliance
Acquisition Status ACTIVE DEMIL Code DEMIL A — No Demilitarization Required Hazard No hazard code in the DLA record (HMIC N) Criticality Code X
Cross-Reference Index
Part Number Manufacturer
B1397D PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (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 4730-01-203-5203?
NSN 4730-01-203-5203 is a Restrictor,fluid Flow, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-203-5203?
NSN 4730-01-203-5203 has 1 manufacturer part number on file: B1397D (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
What are the specifications of B1397D?
Key specifications for B1397D: End Item Identification: TARAWA CLASS LHA. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-203-5203 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.
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