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Technical Data Sheet
PartsTable / COMPONENT / NS-3983 ITEM 24
NS-3983 ITEM 24 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The CLAPPER ASSEMBLY,VALVE is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-088-0912, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NS-3983 ITEM 24
NSN: 4820-01-088-0912
FSC: 4820
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
Part NumberNS-3983 ITEM 24
NSN4820-01-088-0912
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NS-3983 ITEM 24 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
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
TECHNICAL CHARACTERISTICS (FLIS)
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
NS-3983 ASSY EInterchangeable
interchangeable cross-reference
interchangeable
NS-3983Interchangeable
interchangeable cross-reference
interchangeable
S90075/300413Interchangeable
interchangeable cross-reference
interchangeable
S90091/300480Interchangeable
interchangeable cross-reference
interchangeable
NS-3983 FIND 32Interchangeable
interchangeable cross-reference
interchangeable
2621-927-10 ITEInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NS-3983 ITEM 24?
NS-3983 ITEM 24 is a CLAPPER ASSEMBLY,VALVE.
What parts can replace NS-3983 ITEM 24?
There are 22 known substitutes for NS-3983 ITEM 24: NS-3983 ASSY E, NS-3983, S90075/300413 and 19 more. Substitute compatibility should be verified for your specific system.
Is NS-3983 ITEM 24 still available?
NS-3983 ITEM 24 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026