PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5623Restrictor,fluid Flow

Flagg Stanley G & Co Inc Dba Flagg Brass · NSN 4730-00-034-8538 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-034-8538 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-034-8538. Primary manufacturer part number: 5623.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Length: 0.875 INCHES NOMINAL IN
  • Outside Diameter: 0.500 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Design Type: TUBULAR
  • Hose/tube Size for Which Designed: 1/4 IN.OD TUBE IN
  • Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
  • Orifice Diameter: 0.188 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-00-034-8538, 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 Flagg Stanley G & Co Inc Dba Flagg Brass. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-034-8538
Primary Part Number5623
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFlagg Stanley G & Co Inc Dba Flagg Brass
StatusACTIVE
Length0.875 INCHES NOMINAL IN
Outside Diameter0.500 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Design TypeTUBULAR
Hose/tube Size for Which Designed1/4 IN.OD TUBE IN
Thread ProvisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
Orifice Diameter0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-119-1962 INTERCHANGEABLE
Packing,preformed
6515-00-194-9675309623 INTERCHANGEABLE
Syringe and Needle,hypodermic
Becton, Dickinson and Co Dba Becton Dickinson & Co
6150-00-295-81095623 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
5325-00-721-4982358814 INTERCHANGEABLE
Ring,retaining
Cae Usa Inc.
1620-00-751-87105623 INTERCHANGEABLE
Piston,floating
Goodrich Aerospace Canada Ltd
5975-00-905-09485623 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5998-01-098-5594 INTERCHANGEABLE
Circuit Card Assembly
4720-01-479-33355623 INTERCHANGEABLE
Hose Assembly,nonmetallic
Independent Rough Terrain Center Llc
6515-01-559-0741204902 INTERCHANGEABLE
Holder,injector Syringe
Select Inc
Cross-Reference Index
Part NumberManufacturer
3588-1-4 The Walworth Company (USA)
580-508-1699637ALTAPCF88 Naval Ship Systems Command (USA)
4DP2110-1PC3588-1-4 The Walworth Company (USA)
417-2100-1193323PCF4 Naval Ship Systems Command (USA)
5623 PRIMARY Flagg Stanley G & Co Inc Dba Flagg Brass (USA)
Related Parts
5330-00-119-1962INTERCHANGEABLE
PACKING,PREFORMED
6515-00-194-9675INTERCHANGEABLE
SYRINGE AND NEEDLE,HYPODERMIC
309623
6150-00-295-8109INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
5623
5325-00-721-4982INTERCHANGEABLE
RING,RETAINING
358814
1620-00-751-8710INTERCHANGEABLE
PISTON,FLOATING
5623
5975-00-905-0948INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5623
5998-01-098-5594INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4720-01-479-3335INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5623
6515-01-559-0741INTERCHANGEABLE
HOLDER,INJECTOR SYRINGE
204902

Frequently Asked Questions

What is NSN 4730-00-034-8538?

NSN 4730-00-034-8538 is a Restrictor,fluid Flow, manufactured by Flagg Stanley G & Co Inc Dba Flagg Brass, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-034-8538?

NSN 4730-00-034-8538 has 5 cross-referenced part numbers: 3588-1-4 (The Walworth Company), 580-508-1699637ALTAPCF88 (Naval Ship Systems Command), 4DP2110-1PC3588-1-4 (The Walworth Company), 417-2100-1193323PCF4 (Naval Ship Systems Command), 5623 (Flagg Stanley G & Co Inc Dba Flagg Brass).

What NSN replaces 4730-00-034-8538?

There are 9 known substitutes for 4730-00-034-8538: 5330-00-119-1962, 6515-00-194-9675, 6150-00-295-8109 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5623?

Key specifications for 5623: Length: 0.875 INCHES NOMINAL IN; Outside Diameter: 0.500 INCHES NOMINAL IN; Material: COPPER ALLOY; Design Type: TUBULAR. 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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