PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-3983 FIND 31CPDisk,valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-101-6504 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-101-6504 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-101-6504. Primary manufacturer part number: NS-3983 FIND 31CP.
Features
  • Disk,valve — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
  • 4 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-101-6504, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-101-6504
Primary Part NumberNS-3983 FIND 31CP
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-095-8754NS-3983 FIND 31 INTERCHANGEABLE
Disk Assembly,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
NS-3983 FIND 31CP Naval Inventory Control Point Mechanicsburg (USA)
NS-3983 FIND 31 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 FIND 31 National Oilwell (USA)
NS-3983 FIND 31CP Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4820-01-095-8754INTERCHANGEABLE
DISK ASSEMBLY,VALVE
NS-3983 FIND 31

Frequently Asked Questions

What is NSN 4820-01-101-6504?

NSN 4820-01-101-6504 is a Disk,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-101-6504?

NSN 4820-01-101-6504 has 4 cross-referenced part numbers: NS-3983 FIND 31CP (Naval Inventory Control Point Mechanicsburg), NS-3983 FIND 31 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-3983 FIND 31 (National Oilwell), NS-3983 FIND 31CP (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-101-6504?

There is 1 known substitute for 4820-01-101-6504: 4820-01-095-8754. Verify interchangeability with system specifications before substitution.

What are the specifications of NS-3983 FIND 31CP?

Key specifications for NS-3983 FIND 31CP: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 2 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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