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PartsTable / COMPONENT / MV-21W5 ITEM 6
MV-21W5 ITEM 6 ✓ 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 CAP,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, attachment_method: BOLTS, valve_size_for_which_designed: 5.000 INCHES IN, valve_type_for_which_designed: GLOBE, valve_model_number_for_which_designed: 21W--CB-3 W. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-274-0566, 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
MV-21W5 ITEM 6
NSN: 4820-01-274-0566
FSC: 4820
CAGE: 61661 — NEWMANS INC NEW JERSEY DIV (USA)
SPECIFICATIONS
materialSTEEL
attachment_methodBOLTS
valve_size_for_which_designed5.000 INCHES IN
valve_type_for_which_designedGLOBE
valve_model_number_for_which_designed21W--CB-3 W
NSN4820-01-274-0566
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MV-21W5 ITEM 6 · 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
•
VALVE SIZE FOR WHICH DESIGNED: 5.000 INCHES IN
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 21W--CB-3 W
•
ATTACHMENT METHOD: BOLTS
•
VALVE TYPE FOR WHICH DESIGNED: GLOBE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
VALVE SIZE FOR WHICH DESIGNED5.000 INCHES IN
VALVE MODEL NUMBER FOR WHICH DESIGNED21W--CB-3 W
ATTACHMENT METHODBOLTS
VALVE TYPE FOR WHICH DESIGNEDGLOBE
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
MIL-DTL-22052Interchangeable
interchangeable cross-reference
interchangeable
MIL-V-22052DInterchangeable
interchangeable cross-reference
interchangeable
8347-2 1/2 IN.Interchangeable
interchangeable cross-reference
interchangeable
MILV22052Interchangeable
interchangeable cross-reference
interchangeable
C9877-7Interchangeable
interchangeable cross-reference
interchangeable
78306-B12-27PS2TS-SC40-882056343Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MV-21W5 ITEM 6?
MV-21W5 ITEM 6 is a CAP,VALVE.
What parts can replace MV-21W5 ITEM 6?
There are 14 known substitutes for MV-21W5 ITEM 6: MIL-DTL-22052, MIL-V-22052D, 8347-2 1/2 IN. and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MV-21W5 ITEM 6?
MV-21W5 ITEM 6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-274-0566. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026