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Technical Data Sheet
911K390 ✓ 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 VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 STEM, valve_size: 8.000 INCHES IN, special_features: WEATHERPROOF OPERATOR WITH BRONZE SECTOR GEAR FOR MARINE SERVICE., style_designator: STRAIGHT THRU, operating_pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 400.0 FAHRENHEIT SINGLE RESPONSE DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-143-9024, 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
911K390
NSN: 4820-01-143-9024
FSC: 4820
CAGE: 91363 — NORRISEAL NORRIS VALUES DIV DBA DOVER CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 STEM
valve_size8.000 INCHES IN
special_featuresWEATHERPROOF OPERATOR WITH BRONZE SECTOR GEAR FOR MARINE SERVICE.
style_designatorSTRAIGHT THRU
operating_pressure200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
valve_operation_methodMANUAL
end_item_identificationMODEL D2030-645A-2KM A
material_document_and_classificationQQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
NSN4820-01-143-9024
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 911K390 · 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 FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP: 400.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP400.0 FAHRENHEIT SINGLE RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIALNICKEL ALLOY 400 STEM
MATERIALCOPPER ALLOY 922 BODY
MATERIALNICKEL ALLOY SEAT
END ITEM IDENTIFICATIONMODEL D2030-645A-2KM A
SPECIAL FEATURESWEATHERPROOF OPERATOR WITH BRONZE SECTOR GEAR FOR MARINE SERVICE.
STYLE DESIGNATORSTRAIGHT THRU
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
91-1390Interchangeable
interchangeable cross-reference
interchangeable
5867911390Interchangeable
interchangeable cross-reference
interchangeable
30-990Interchangeable
interchangeable cross-reference
interchangeable
8" D2030-645A-2KMInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 911K390?
911K390 is a VALVE,BUTTERFLY.
What parts can replace 911K390?
There are 4 known substitutes for 911K390: 91-1390, 5867911390, 30-990 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 911K390?
911K390 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-143-9024. This indicates validated use in U.S. government and defense supply chains.
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