PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K40Seat,valve

Psg California, Llc Div Dover Corporation · NSN 4820-01-330-3581 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-330-3581 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-330-3581. Primary manufacturer part number: K40.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Psg California, Llc Div Dover Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-330-3581, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Psg California, Llc Div Dover Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersPsg California, Llc Div Dover Corporation (CAGE 52837)
Technical Specifications
ParameterValue
NSN4820-01-330-3581
Primary Part NumberK40
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPsg California, Llc Div Dover Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5120-00-017-3827 INTERCHANGEABLE
Contact Positioner,terminal Crim
3439-00-132-2858 INTERCHANGEABLE
Head,electrode Holder
5340-00-285-7979D-23-40 INTERCHANGEABLE
Latch,rim
Dent Manufacturing Inc
5310-00-616-7576916572 INTERCHANGEABLE
Washer,flat
Chrysler Realty Company Llc Dba Daimler Chrysler
3020-01-275-4141K40 INTERCHANGEABLE
Gear Cluster
Butterworth, Inc.
5120-01-335-8625K40 INTERCHANGEABLE
Contact Positioner,terminal Crim
Daniels Manufacturing Corporation
5836-01-355-7455K40 INTERCHANGEABLE
Generator,character
Grove Corp Dba Knox Video Products
4030-01-421-278575-101-27A INTERCHANGEABLE
Clamp,line,sliding Grip
Valad Electric Heating Corp.
5330-01-442-5604K-40 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Fenner Fluid Power Inc
5130-01-652-1081968372401 INTERCHANGEABLE
Saw,cut-Off,pneumatic,portable
Husqvarna Construction Products North America, Inc.
Cross-Reference Index
Part NumberManufacturer
K40 Psg California, Llc Div Dover Corporation (USA)
Related Parts
5120-00-017-3827INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
3439-00-132-2858INTERCHANGEABLE
HEAD,ELECTRODE HOLDER
5340-00-285-7979INTERCHANGEABLE
LATCH,RIM
D-23-40
5310-00-616-7576INTERCHANGEABLE
WASHER,FLAT
916572
3020-01-275-4141INTERCHANGEABLE
GEAR CLUSTER
K40
5120-01-335-8625INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
K40
5836-01-355-7455INTERCHANGEABLE
GENERATOR,CHARACTER
K40
4030-01-421-2785INTERCHANGEABLE
CLAMP,LINE,SLIDING GRIP
75-101-27A
5330-01-442-5604INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
K-40
5130-01-652-1081INTERCHANGEABLE
SAW,CUT-OFF,PNEUMATIC,PORTABLE
968372401

Frequently Asked Questions

What is NSN 4820-01-330-3581?

NSN 4820-01-330-3581 is a Seat,valve, manufactured by Psg California, Llc Div Dover Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-330-3581?

NSN 4820-01-330-3581 has 1 cross-referenced part number: K40 (Psg California, Llc Div Dover Corporation).

What NSN replaces 4820-01-330-3581?

There are 10 known substitutes for 4820-01-330-3581: 5120-00-017-3827, 3439-00-132-2858, 5340-00-285-7979 and 7 more. Verify interchangeability with system specifications before substitution.

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