PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

419100Restrictor,fluid Flow

U. S. Dynamics Corporation · NSN 4730-00-264-0307 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-264-0307 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-264-0307. Primary manufacturer part number: 419100.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Material: STEEL CORROSION RESISTING
  • Thread Direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
  • Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED
  • Thread Class: 2B LOCATION NOT OTHERWISE SPECIFIED
  • Design Type: TUBULAR
  • Outside Diameter: 0.232 INCHES NOMINAL IN
  • Thread Length: 0.060 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-264-0307, 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 U. S. Dynamics Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-264-0307
Primary Part Number419100
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerU. S. Dynamics Corporation
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Thread DirectionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
Thread ProvisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
Thread Class2B LOCATION NOT OTHERWISE SPECIFIED
Design TypeTUBULAR
Outside Diameter0.232 INCHES NOMINAL IN
Thread Length0.060 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Orifice Diameter0.012 INCHES NOMINAL IN
Surface TreatmentPASSIVATE
Length0.820 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-355-7683419100 INTERCHANGEABLE
Valve Assembly,manifold
Tyco Fire Products Lp
6340-00-759-071065-0136-7 INTERCHANGEABLE
Indicator,fire
Grimes Aerospace Company
Cross-Reference Index
Part NumberManufacturer
581R131H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
EX43465 The Lee Co Dba the Lee Co (USA)
419100 PRIMARY U. S. Dynamics Corporation (USA)
VDCX0434650B The Lee Co Dba the Lee Co (USA)
Related Parts
4820-00-355-7683INTERCHANGEABLE
VALVE ASSEMBLY,MANIFOLD
419100
6340-00-759-0710INTERCHANGEABLE
INDICATOR,FIRE
65-0136-7

Frequently Asked Questions

What is NSN 4730-00-264-0307?

NSN 4730-00-264-0307 is a Restrictor,fluid Flow, manufactured by U. S. Dynamics Corporation, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-264-0307?

NSN 4730-00-264-0307 has 4 cross-referenced part numbers: 581R131H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), EX43465 (The Lee Co Dba the Lee Co), 419100 (U. S. Dynamics Corporation), VDCX0434650B (The Lee Co Dba the Lee Co).

What NSN replaces 4730-00-264-0307?

There are 2 known substitutes for 4730-00-264-0307: 4820-00-355-7683, 6340-00-759-0710. Verify interchangeability with system specifications before substitution.

What are the specifications of 419100?

Key specifications for 419100: Material: STEEL CORROSION RESISTING; Thread Direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Thread Class: 2B LOCATION NOT OTHERWISE SPECIFIED. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com