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Technical Data Sheet
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845-1889587PC4,1/2IN — Technical Data Sheet

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— · 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: NICKEL ALLOY SEAT, end_item_identification: MOORED TRAINING SHIP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-549-5993, 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
845-1889587PC4,1/2IN
NSN: 4820-01-549-5993
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
end_item_identificationMOORED TRAINING SHIP
NSN4820-01-549-5993
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-1889587PC4,1/2IN · 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 SEAT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY SEAT
END ITEM IDENTIFICATIONMOORED TRAINING SHIP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
2620-902-27-1INInterchangeable
interchangeable cross-reference
interchangeable
302352Interchangeable
interchangeable cross-reference
interchangeable
2620-902Interchangeable
interchangeable cross-reference
interchangeable
803-2177934-X53X-9-12-14-15Interchangeable
interchangeable cross-reference
interchangeable
1889587Interchangeable
interchangeable cross-reference
interchangeable
11-03-9044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-1889587PC4,1/2IN?
845-1889587PC4,1/2IN is a SEAT,VALVE.
What parts can replace 845-1889587PC4,1/2IN?
There are 7 known substitutes for 845-1889587PC4,1/2IN: 2620-902-27-1IN, 302352, 2620-902 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-1889587PC4,1/2IN?
845-1889587PC4,1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-549-5993. 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: September 2026