PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3654Restrictor Unit,fluid Flow

General Signal Corp · NSN 4730-00-473-5900 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-473-5900 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-473-5900. Primary manufacturer part number: 3654.
Features
  • Restrictor Unit,fluid Flow — FSC 4730
  • Design Type: STRAIGHT
  • Diameter: 0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
  • Orifice Diameter: 0.040 INCHES NOMINAL IN
  • End Connection Similarity: NOT IDENTICAL
  • Strainer Type and Quantity: 1 SCREEN
  • Pressure Rating: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Width Across Flats: 0.105 INCHES NOMINAL IN
Applications
  • Applications requiring Nickel Alloy Screening construction
General Description

The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-00-473-5900, 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 General Signal Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-473-5900
Primary Part Number3654
Item NameRestrictor Unit,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGeneral Signal Corp
StatusACTIVE
Design TypeSTRAIGHT
Diameter0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN
Orifice Diameter0.040 INCHES NOMINAL IN
End Connection SimilarityNOT IDENTICAL
Strainer Type and Quantity1 SCREEN
Pressure Rating3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Width Across Flats0.105 INCHES NOMINAL IN
FSC Application DataMOTOR&PUMP,HYDRAULIC. B-52 AIRCRAFT
MaterialNICKEL ALLOY SCREENING
MaterialSTEEL CORROSION RESISTING BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-155-743026352BPC3654AS INTERCHANGEABLE
Bearing,roller,tapered
Brinkley Technology Group Llc Dba Hercules Manufacturing
5220-00-215-22053654 INTERCHANGEABLE
Gage
Allison Transmission Inc Dba Allison Transmission, Inc
6515-00-601-8972 INTERCHANGEABLE
Tube,connecting,surgical Apparat
6505-01-043-79693654 INTERCHANGEABLE
Carbenicillin Indanyl Sodium Tab
Roerig Div Pfizer Inc
4820-01-062-3662365-4 INTERCHANGEABLE
Cartridge,valve
Admiral Valve Llc Dba Cpv Manufacturing
4820-01-192-2359 INTERCHANGEABLE
Cartridge Assembly,valve
5910-01-255-0576 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
5985-01-285-8819FT-1172 INTERCHANGEABLE
Mixer,crystal,coaxial
Caes Systems Llc
4910-01-550-6769 INTERCHANGEABLE
Analyzer Set,vehicular
4820-01-680-3362171N-112-NPT INTERCHANGEABLE
Valve,ball
J.w.f. Technologies, Llc
Cross-Reference Index
Part NumberManufacturer
3654 General Signal Corp (USA)
DS-921979 Eaton Aerospace, Llc Dba Jackson South (USA)
3654 Eaton Aerospace, Llc Dba Jackson South (USA)
DS-921979 Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
3110-00-155-7430INTERCHANGEABLE
BEARING,ROLLER,TAPERED
26352BPC3654AS
5220-00-215-2205INTERCHANGEABLE
GAGE
3654
6515-00-601-8972INTERCHANGEABLE
TUBE,CONNECTING,SURGICAL APPARAT
6505-01-043-7969INTERCHANGEABLE
CARBENICILLIN INDANYL SODIUM TAB
3654
4820-01-062-3662INTERCHANGEABLE
CARTRIDGE,VALVE
365-4
4820-01-192-2359INTERCHANGEABLE
CARTRIDGE ASSEMBLY,VALVE
5910-01-255-0576INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
5985-01-285-8819INTERCHANGEABLE
MIXER,CRYSTAL,COAXIAL
FT-1172
4910-01-550-6769INTERCHANGEABLE
ANALYZER SET,VEHICULAR
4820-01-680-3362INTERCHANGEABLE
VALVE,BALL
171N-112-NPT

Frequently Asked Questions

What is NSN 4730-00-473-5900?

NSN 4730-00-473-5900 is a Restrictor Unit,fluid Flow, manufactured by General Signal Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-473-5900?

NSN 4730-00-473-5900 has 4 cross-referenced part numbers: 3654 (General Signal Corp), DS-921979 (Eaton Aerospace, Llc Dba Jackson South), 3654 (Eaton Aerospace, Llc Dba Jackson South), DS-921979 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4730-00-473-5900?

There are 10 known substitutes for 4730-00-473-5900: 3110-00-155-7430, 5220-00-215-2205, 6515-00-601-8972 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3654?

Key specifications for 3654: Overall Length: 0.453 INCHES NOMINAL IN; Design Type: STRAIGHT; Diameter: 0.145 INCHES MINIMUM AND 0.147 INCHES MAXIMUM IN; Orifice Diameter: 0.040 INCHES NOMINAL IN. 11 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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