PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NS-3983 FIND 24Clapper Assembly,valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-088-0912 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-088-0912 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-088-0912. Primary manufacturer part number: NS-3983 FIND 24.
Features
  • Clapper Assembly,valve — FSC 4820
  • General Characteristics Item Description: NICKEL,COPPER; CONSISTING OF; 1 CLAPPER,COPPER NICKEL; 1 RULON BUMPER,PLASTIC; 1 BUMPER NUT,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 BUMPER SCREW,NICKEL COPPER ALLOY,QQ-N-281 CLASS A; 1 PIN,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 CLAPPER SEAL,SYNTHETIC RUBBER,MIL-P-5516 CLASS B; 2 METAL BUSHINGS,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 2 RULON BUSHINGS,PLASTIC; 2 BUSHING RETAINERS,COPPER ALLOY,QQ-C-533 ALLOY 25
  • 13 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 Clapper Assembly,valve, cataloged under National Stock Number 4820-01-088-0912, 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 13 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-088-0912
Primary Part NumberNS-3983 FIND 24
Item NameClapper Assembly,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusCANCELLED
General Characteristics Item DescriptionNICKEL,COPPER; CONSISTING OF; 1 CLAPPER,COPPER NICKEL; 1 RULON BUMPER,PLASTIC; 1 BUMPER NUT,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 BUMPER SCREW,NICKEL COPPER ALLOY,QQ-N-281 CLASS A; 1 PIN,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 CLAPPER SEAL,SYNTHETIC RUBBER,MIL-P-5516 CLASS B; 2 METAL BUSHINGS,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 2 RULON BUSHINGS,PLASTIC; 2 BUSHING RETAINERS,COPPER ALLOY,QQ-C-533 ALLOY 25
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
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
4820-01-095-8754NS-3983 FIND 31 INTERCHANGEABLE
Disk Assembly,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
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
NS3983PC24 National Oilwell (USA)
NS-3983 National Oilwell (USA)
NS-3983 ITEM 24 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 FIND 24 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS3983PC24 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
S90067/300450 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 FIND 24 National Oilwell (USA)
S90067/300450 PC30 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 ITEM 30 National Oilwell (USA)
NS3983PC30 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
NS-3983 ITEM 25 National Oilwell (USA)
NS3983PC30 National Oilwell (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
4820-01-095-8754INTERCHANGEABLE
DISK ASSEMBLY,VALVE
NS-3983 FIND 31
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 4820-01-088-0912?

NSN 4820-01-088-0912 is a Clapper Assembly,valve, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-088-0912?

NSN 4820-01-088-0912 has 13 cross-referenced part numbers: NS3983PC24 (National Oilwell), NS-3983 (National Oilwell), NS-3983 ITEM 24 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS-3983 FIND 24 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), NS3983PC24 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team) and 8 more.

What NSN replaces 4820-01-088-0912?

There are 8 known substitutes for 4820-01-088-0912: 4820-01-063-3879, 4820-01-087-1336, 4820-01-095-8754 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NS-3983 FIND 24?

Key specifications for NS-3983 FIND 24: General Characteristics Item Description: NICKEL,COPPER; CONSISTING OF; 1 CLAPPER,COPPER NICKEL; 1 RULON BUMPER,PLASTIC; 1 BUMPER NUT,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 BUMPER SCREW,NICKEL COPPER ALLOY,QQ-N-281 CLASS A; 1 PIN,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 1 CLAPPER SEAL,SYNTHETIC RUBBER,MIL-P-5516 CLASS B; 2 METAL BUSHINGS,NICKEL COPPER ALLOY,QQ-N-281 CLASS B; 2 RULON BUSHINGS,PLASTIC; 2 BUSHING RETAINERS,COPPER ALLOY,QQ-C-533 ALLOY 25. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-088-0912 still in active supply?

NSN 4820-01-088-0912 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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