PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C-3854 INDEX 3 4INDisk,valve

Cooper Cameron Corp Cooper Cameron Valves Div · NSN 4820-01-131-3377 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-131-3377 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-131-3377. Primary manufacturer part number: C-3854 INDEX 3 4IN.
Features
  • Disk,valve — FSC 4820
  • Material: NICKEL ALLOY
  • 3 verified cross-references
  • Primary manufacturer: Cooper Cameron Corp Cooper Cameron Valves Div
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-131-3377, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cooper Cameron Corp Cooper Cameron Valves Div. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-01-131-3377
Primary Part NumberC-3854 INDEX 3 4IN
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCooper Cameron Corp Cooper Cameron Valves Div
StatusACTIVE
MaterialNICKEL ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
9340-00-202-1816A7443 INTERCHANGEABLE
Window,observation
L3 Technologies, Inc.
5330-00-737-1494A7443 INTERCHANGEABLE
Gasket Set
Am General Llc
Cross-Reference Index
Part NumberManufacturer
A-7443 Cooper Cameron Corp Cooper Cameron Valves Div (USA)
7443-003 Cooper Cameron Corp Cooper Cameron Valves Div (USA)
C-3854 INDEX 3 4IN PRIMARY Cooper Cameron Corp Cooper Cameron Valves Div (USA)
Related Parts
9340-00-202-1816INTERCHANGEABLE
WINDOW,OBSERVATION
A7443
5330-00-737-1494INTERCHANGEABLE
GASKET SET
A7443

Frequently Asked Questions

What is NSN 4820-01-131-3377?

NSN 4820-01-131-3377 is a Disk,valve, manufactured by Cooper Cameron Corp Cooper Cameron Valves Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-131-3377?

NSN 4820-01-131-3377 has 3 cross-referenced part numbers: A-7443 (Cooper Cameron Corp Cooper Cameron Valves Div), 7443-003 (Cooper Cameron Corp Cooper Cameron Valves Div), C-3854 INDEX 3 4IN (Cooper Cameron Corp Cooper Cameron Valves Div).

What NSN replaces 4820-01-131-3377?

There are 2 known substitutes for 4820-01-131-3377: 9340-00-202-1816, 5330-00-737-1494. Verify interchangeability with system specifications before substitution.

What are the specifications of C-3854 INDEX 3 4IN?

Key specifications for C-3854 INDEX 3 4IN: Material: NICKEL ALLOY. 1 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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