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NS-3981ASSEMBLYB FIND2 — PARTS KIT,CHECK VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

NS-3981ASSEMBLYB FIND2: PARTS KIT,CHECK VALVE.

The PARTS KIT,CHECK VALVE is a the manufacturer industrial component. Key specifications include height: 1.688 INCHES NOMINAL IN, material: COPPER ALLOY, outside_diameter: 4.110 INCHES NOMINAL IN, valve_size_for_which_designed: 3.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-107-2452, 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-3981ASSEMBLYB FIND2
NSN: 4820-01-107-2452
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
height1.688 INCHES NOMINAL IN
materialCOPPER ALLOY
outside_diameter4.110 INCHES NOMINAL IN
valve_size_for_which_designed3.000 INCHES IN
NSN4820-01-107-2452
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NS-3981ASSEMBLYB FIND2 · 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
•
OUTSIDE DIAMETER: 4.110 INCHES NOMINAL IN
•
VALVE SIZE FOR WHICH DESIGNED: 3.000 INCHES IN
•
HEIGHT: 1.688 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER4.110 INCHES NOMINAL IN
VALVE SIZE FOR WHICH DESIGNED3.000 INCHES IN
HEIGHT1.688 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
NS-3981Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NS-3981ASSEMBLYB FIND2?
NS-3981ASSEMBLYB FIND2 is a PARTS KIT,CHECK VALVE.
What parts can replace NS-3981ASSEMBLYB FIND2?
There is 1 known substitute for NS-3981ASSEMBLYB FIND2: NS-3981. Substitute compatibility should be verified for your specific system.
What is the NSN for NS-3981ASSEMBLYB FIND2?
NS-3981ASSEMBLYB FIND2 is cataloged in the U.S. Government catalog under NSN 4820-01-107-2452. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.