PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-3983 FIND 31Disk Assembly,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-095-8754 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-095-8754 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-095-8754. Primary manufacturer part number: NS-3983 FIND 31.
Features
  • Disk Assembly,valve — FSC 4820
  • General Characteristics Item Description: CONSISTS OF 1 EA CLAPPER,BUMPER NUT,BUMPER SCREW,PIN,KEL-F BUMPER,CLAPPER SEAL,2 EACH METAL BUSHING,BUSHING RETAINER AND KEL-F BUSHING
  • 9 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Disk Assembly,valve, cataloged under National Stock Number 4820-01-095-8754, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-095-8754
Primary Part NumberNS-3983 FIND 31
Item NameDisk Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF 1 EA CLAPPER,BUMPER NUT,BUMPER SCREW,PIN,KEL-F BUMPER,CLAPPER SEAL,2 EACH METAL BUSHING,BUSHING RETAINER AND KEL-F BUSHING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-01-063-3879S90075/300413/300121 INTERCHANGEABLE
Parts Kit,check Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-087-1336NS-3983 FIND 32 INTERCHANGEABLE
Parts Kit,check Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-088-0912NS-3983 FIND 24 INTERCHANGEABLE
Clapper Assembly,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-101-6504 INTERCHANGEABLE
Disk,valve
4820-01-103-725690182000 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-113-7824 INTERCHANGEABLE
Valve,check
4820-01-188-121390040000 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-226-6170300160 INTERCHANGEABLE
Cap,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-255-661890089-000 INTERCHANGEABLE
Valve,check
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
2621-927-10 ITE Electric Boat Corporation Div General Dynamics Electric Boat (USA)
NS-3983 FIND 31 National Oilwell (USA)
NS-3983 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 FIND 31 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
S90092/300475 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
2621-927-10IT13,15-21,25,1.5 IN Electric Boat Corporation Div General Dynamics Electric Boat (USA)
S90075 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 National Oilwell (USA)
S90075AND300121 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
4820-01-063-3879INTERCHANGEABLE
PARTS KIT,CHECK VALVE
S90075/300413/300121
4820-01-087-1336INTERCHANGEABLE
PARTS KIT,CHECK VALVE
NS-3983 FIND 32
4820-01-088-0912INTERCHANGEABLE
CLAPPER ASSEMBLY,VALVE
NS-3983 FIND 24
4820-01-101-6504INTERCHANGEABLE
DISK,VALVE
4820-01-103-7256INTERCHANGEABLE
VALVE,CHECK
90182000
4820-01-113-7824INTERCHANGEABLE
VALVE,CHECK
4820-01-188-1213INTERCHANGEABLE
VALVE,CHECK
90040000
4820-01-226-6170INTERCHANGEABLE
CAP,VALVE
300160
4820-01-255-6618INTERCHANGEABLE
VALVE,CHECK
90089-000

Frequently Asked Questions

What is NSN 4820-01-095-8754?

NSN 4820-01-095-8754 is a Disk Assembly,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-095-8754?

NSN 4820-01-095-8754 has 9 cross-referenced part numbers: 2621-927-10 ITE (Electric Boat Corporation Div General Dynamics Electric Boat), NS-3983 FIND 31 (National Oilwell), NS-3983 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-3983 FIND 31 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), S90092/300475 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 4 more.

What NSN replaces 4820-01-095-8754?

There are 9 known substitutes for 4820-01-095-8754: 4820-01-063-3879, 4820-01-087-1336, 4820-01-088-0912 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NS-3983 FIND 31?

Key specifications for NS-3983 FIND 31: General Characteristics Item Description: CONSISTS OF 1 EA CLAPPER,BUMPER NUT,BUMPER SCREW,PIN,KEL-F BUMPER,CLAPPER SEAL,2 EACH METAL BUSHING,BUSHING RETAINER AND KEL-F BUSHING. 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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