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920-237 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

920-237: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT, valve_operation_method: ELECTRIC MOTOR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-367-5384, 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
920-237
NSN: 4820-01-367-5384
NIINs: 013675384, 014202938
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
valve_operation_methodELECTRIC MOTOR
NSN4820-01-367-5384
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 920-237 · 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
•
MATERIAL: NICKEL ALLOY STEM
•
VALVE OPERATION METHOD: ELECTRIC MOTOR
TECHNICAL CHARACTERISTICS
MATERIALNICKEL ALLOY STEM
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MATERIALNICKEL ALLOY BODY
VALVE OPERATION METHODELECTRIC MOTOR
SUBSTITUTES & CROSS-REFERENCES 1
R285B-666AA-10INReference 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 920-237?
920-237 is a VALVE,BUTTERFLY.
What parts can replace 920-237?
There is 1 known substitute for 920-237: R285B-666AA-10IN. Substitute compatibility should be verified for your specific system.
What is the NSN for 920-237?
920-237 is cataloged in the U.S. Government catalog under NSN 4820-01-367-5384. 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.