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Technical Data Sheet
PartsTable / COMPONENT / 21844N
21844N ✓ 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,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_item_identification: STEAM CONTROL VALVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-177-8421, 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
21844N
NSN: 4820-00-177-8421
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_item_identificationSTEAM CONTROL VALVE
NSN4820-00-177-8421
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21844N · 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
•
PORT WIDTH: 1.906 INCHES NOMINAL IN
•
PORT QUANTITY: 4
•
PORT SHAPE: RECTANGULAR
•
MATERIAL: STEEL CORROSION RESISTING
•
PORT LENGTH: 2.266 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PORT WIDTH1.906 INCHES NOMINAL IN
PORT QUANTITY4
PORT SHAPERECTANGULAR
MATERIALSTEEL CORROSION RESISTING
PORT LENGTH2.266 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
52445-00-58Interchangeable
interchangeable cross-reference
interchangeable
21844NInterchangeable
interchangeable cross-reference
interchangeable
21844N PIECE 14Interchangeable
interchangeable cross-reference
interchangeable
58197Interchangeable
interchangeable cross-reference
interchangeable
21844N-3 PIECE 8Interchangeable
interchangeable cross-reference
interchangeable
21844N-3 PIECE 9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21844N?
21844N is a SEAT,VALVE.
What parts can replace 21844N?
There are 14 known substitutes for 21844N: 52445-00-58, 21844N, 21844N PIECE 14 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21844N?
21844N is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-177-8421. 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