PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18040Valve,float

Kaydon Custom Filtration Corporation · NSN 4820-01-134-3456 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-134-3456 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-134-3456. Primary manufacturer part number: 18040.
Features
  • Valve,float — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Kaydon Custom Filtration Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,float, cataloged under National Stock Number 4820-01-134-3456, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Kaydon Custom Filtration Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,float
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersKaydon Custom Filtration Corporation (CAGE 53964); Kaydon Corporation Dba Kaydon Filtration Group (CAGE 08181)
Technical Specifications
ParameterValue
NSN4820-01-134-3456
Primary Part Number18040
Item NameValve,float
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKaydon Custom Filtration Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-189-9285 INTERCHANGEABLE
Drill,twist
3455-00-268-9350 INTERCHANGEABLE
Cutter,milling,involute Gear
3110-00-979-7835 INTERCHANGEABLE
Bearing,ball,annular
4520-01-042-304918040 INTERCHANGEABLE
Panel Assembly
Hdt Expeditionary Systems Inc
5950-01-049-78443223119 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5315-01-302-932618040 INTERCHANGEABLE
Pin,straight,headless
Coffin Turbo Pump Inc
5330-01-565-304418 040 INTERCHANGEABLE
Gasket
Winteb Usa, Inc
Cross-Reference Index
Part NumberManufacturer
18040 Kaydon Custom Filtration Corporation (USA)
18040 Kaydon Corporation Dba Kaydon Filtration Group (USA)
Related Parts
5133-00-189-9285INTERCHANGEABLE
DRILL,TWIST
3455-00-268-9350INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
3110-00-979-7835INTERCHANGEABLE
BEARING,BALL,ANNULAR
4520-01-042-3049INTERCHANGEABLE
PANEL ASSEMBLY
18040
5950-01-049-7844INTERCHANGEABLE
TRANSFORMER,POWER
3223119
5315-01-302-9326INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
18040
5330-01-565-3044INTERCHANGEABLE
GASKET
18 040

Frequently Asked Questions

What is NSN 4820-01-134-3456?

NSN 4820-01-134-3456 is a Valve,float, manufactured by Kaydon Custom Filtration Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-134-3456?

NSN 4820-01-134-3456 has 2 cross-referenced part numbers: 18040 (Kaydon Custom Filtration Corporation), 18040 (Kaydon Corporation Dba Kaydon Filtration Group).

What NSN replaces 4820-01-134-3456?

There are 7 known substitutes for 4820-01-134-3456: 5133-00-189-9285, 3455-00-268-9350, 3110-00-979-7835 and 4 more. Verify interchangeability with system specifications before substitution.

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