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PartsTable / COMPONENT / S-529 ITEM 99VM
S-529 ITEM 99VM ✓ 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,CHECK is a the manufacturer industrial component. Key specifications include special_features: CARTRIDGE TYPE VALVE, flow_control_device: DISK, valve_operation_method: AUTOMATIC, reference_number_differentiating_characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-233-6838, 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
S-529 ITEM 99VM
NSN: 4820-01-233-6838
FSC: 4820
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
special_featuresCARTRIDGE TYPE VALVE
flow_control_deviceDISK
valve_operation_methodAUTOMATIC
reference_number_differentiating_characteristicsMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
NSN4820-01-233-6838
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S-529 ITEM 99VM · 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
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
•
VALVE OPERATION METHOD: AUTOMATIC
•
FLOW CONTROL DEVICE: DISK
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCARTRIDGE TYPE VALVE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
VALVE OPERATION METHODAUTOMATIC
FLOW CONTROL DEVICEDISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
22125Interchangeable
interchangeable cross-reference
interchangeable
MS-41/ARInterchangeable
interchangeable cross-reference
interchangeable
654Interchangeable
interchangeable cross-reference
interchangeable
221681Interchangeable
interchangeable cross-reference
interchangeable
3-050-M2Interchangeable
interchangeable cross-reference
interchangeable
3-050-M2 ITEM 7 9.375 INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S-529 ITEM 99VM?
S-529 ITEM 99VM is a VALVE,CHECK.
What parts can replace S-529 ITEM 99VM?
There are 10 known substitutes for S-529 ITEM 99VM: 22125, MS-41/AR, 654 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S-529 ITEM 99VM?
S-529 ITEM 99VM is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-233-6838. 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