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920L220 — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

920L220: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY STEM, valve_size: 10.000 INCHES IN, style_designator: STRAIGHT THRU, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-355-6295, 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
920L220
NSN: 4820-01-355-6295
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialNICKEL ALLOY STEM
valve_size10.000 INCHES IN
style_designatorSTRAIGHT THRU
valve_operation_methodMANUAL
material_document_and_classificationQQ-N-288, COMP A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288, COMP E FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
NSN4820-01-355-6295
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 920L220 · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-288, COMP A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288, COMP E FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
•
VALVE SIZE: 10.000 INCHES IN
•
MATERIAL: NICKEL ALLOY STEM
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288, COMP A FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288, COMP E FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
VALVE SIZE10.000 INCHES IN
MATERIALNICKEL ALLOY STEM
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT
MATERIALNICKEL ALLOY BODY
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 2
920-220Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
10"R285C-666AA-2MMReference document
Same NSN cross-reference
Reference document — Design control — primary 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 920L220?
920L220 is a VALVE,BUTTERFLY.
What parts can replace 920L220?
There are 2 known substitutes for 920L220: 920-220, 10"R285C-666AA-2MM. Substitute compatibility should be verified for your specific system.
What is the NSN for 920L220?
920L220 is cataloged in the U.S. Government catalog under NSN 4820-01-355-6295. 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.