PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32373Restrictor,fluid Flow

Bourns Inc · NSN 4730-01-440-8573 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-440-8573 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-440-8573. Primary manufacturer part number: 32373.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Outside Diameter: 2.1 MILLIMETERS NOMINAL MM
  • Orifice Diameter: 2.1 MILLIMETERS NOMINAL MM
  • Design Type: TUBULAR
  • Material: STEEL CORROSION RESISTING
  • Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
  • 2 verified cross-references
  • Primary manufacturer: Bourns Inc
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-440-8573, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Bourns Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-440-8573
Primary Part Number32373
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerBourns Inc
StatusACTIVE
Outside Diameter2.1 MILLIMETERS NOMINAL MM
Orifice Diameter2.1 MILLIMETERS NOMINAL MM
Design TypeTUBULAR
MaterialSTEEL CORROSION RESISTING
Thread ProvisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5935-00-187-0711323-0073 INTERCHANGEABLE
Connector,plug,electrical
Cummins Power Generation Inc.
2915-00-625-808432373 INTERCHANGEABLE
Cover Assembly,burner
Williams International Co., L.l.c.
4730-01-109-996228H INTERCHANGEABLE
Clamp,hose
Sonoco Products Co
Cross-Reference Index
Part NumberManufacturer
32373 PRIMARY Bourns Inc (USA)
32373 Cat Pumps Corp (USA)
Related Parts
5935-00-187-0711INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
323-0073
2915-00-625-8084INTERCHANGEABLE
COVER ASSEMBLY,BURNER
32373
4730-01-109-9962INTERCHANGEABLE
CLAMP,HOSE
28H

Frequently Asked Questions

What is NSN 4730-01-440-8573?

NSN 4730-01-440-8573 is a Restrictor,fluid Flow, manufactured by Bourns Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-440-8573?

NSN 4730-01-440-8573 has 2 cross-referenced part numbers: 32373 (Bourns Inc), 32373 (Cat Pumps Corp).

What NSN replaces 4730-01-440-8573?

There are 3 known substitutes for 4730-01-440-8573: 5935-00-187-0711, 2915-00-625-8084, 4730-01-109-9962. Verify interchangeability with system specifications before substitution.

What are the specifications of 32373?

Key specifications for 32373: Outside Diameter: 2.1 MILLIMETERS NOMINAL MM; Orifice Diameter: 2.1 MILLIMETERS NOMINAL MM; Design Type: TUBULAR; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIP CLASS. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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