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Technical Data Sheet
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8K1 ✓ 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 SEAT ASSEMBLY,VALVE is a the manufacturer industrial component. Key specifications include special_features: THE RING HAS A DIAMETER OF 1.2500 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-024-9444, 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
8K1
NSN: 4820-00-024-9444
FSC: 4820
CAGE: 88663 — DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE (USA)
SPECIFICATIONS
special_featuresTHE RING HAS A DIAMETER OF 1.2500 INCHES IN
NSN4820-00-024-9444
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8K1 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF ONE EA VALVE SEAT,ONE EA ROUND HEADED STEEL SCREW,ONE EA HEXAGON STEEL NUT,ONE EA STEEL COTTER PIN,ONE EA STEEL SPRING,ONE EA STEEL DISK,ONE EA ALUMINUM WASHER
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF ONE EA VALVE SEAT,ONE EA ROUND HEADED STEEL SCREW,ONE EA HEXAGON STEEL NUT,ONE EA STEEL COTTER PIN,ONE EA STEEL SPRING,ONE EA STEEL DISK,ONE EA ALUMINUM WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
6805Interchangeable
interchangeable cross-reference
interchangeable
5331720Interchangeable
interchangeable cross-reference
interchangeable
97155Interchangeable
interchangeable cross-reference
interchangeable
8K1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8K1?
8K1 is a SEAT ASSEMBLY,VALVE.
What parts can replace 8K1?
There are 4 known substitutes for 8K1: 6805, 5331720, 97155 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8K1?
8K1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-024-9444. 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