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Technical Data Sheet
PartsTable / COMPONENT / 845-1889587ASSYE1/2IN
845-1889587ASSYE1/2IN ✓ 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 845-1889587ASSYE1/2IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-922-8422, 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
845-1889587ASSYE1/2IN
NSN: 4820-00-922-8422
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
Part Number845-1889587ASSYE1/2IN
NSN4820-00-922-8422
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-1889587ASSYE1/2IN · 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
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
•
RENEWABLE SEAT RING TYPE: THREADED
•
FEATURES PROVIDED: BONNET PACKING
•
MATERIAL: COPPER ALLOY 922 BODY
•
BONNET TYPE: INSIDE SCREW
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
OPERATING PRESSURE: 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
RENEWABLE SEAT RING TYPETHREADED
FEATURES PROVIDEDBONNET PACKING
MATERIALCOPPER ALLOY 922 BODY
BONNET TYPEINSIDE SCREW
CRITICALITY CODE JUSTIFICATIONZZZY
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
OPERATING PRESSURE700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORSTRAIGHT THRU
FLOW CONTROL DEVICEDISK
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
2620-902ASSYCInterchangeable
interchangeable cross-reference
interchangeable
2620-902L1Interchangeable
interchangeable cross-reference
interchangeable
2620-902Interchangeable
interchangeable cross-reference
interchangeable
2620-902ASSYB2Interchangeable
interchangeable cross-reference
interchangeable
845-1889587ASSYB2L1Interchangeable
interchangeable cross-reference
interchangeable
2620-902ASSYB1 1-2L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-1889587ASSYE1/2IN?
845-1889587ASSYE1/2IN is a 845-1889587ASSYE1/2IN.
What parts can replace 845-1889587ASSYE1/2IN?
There are 21 known substitutes for 845-1889587ASSYE1/2IN: 2620-902ASSYC, 2620-902L1, 2620-902 and 18 more. Substitute compatibility should be verified for your specific system.
Is 845-1889587ASSYE1/2IN still available?
845-1889587ASSYE1/2IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026