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Technical Data Sheet
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845-1889550PC41,42,44,45-3IN — 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 STEM AND DISK ASSEMBLY is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the Federal Logistics Information System under NSN 4820-01-058-2349, 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
845-1889550PC41,42,44,45-3IN
NSN: 4820-01-058-2349
FSC: 4820
CAGE: 63686 — THE WALWORTH COMPANY (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS
NSN4820-01-058-2349
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 845-1889550PC41,42,44,45-3IN · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
N10701-2BPPC6PC93INL1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-1889580ASSYGS3INPC41-45InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2620-922X5ASSYGS3INPC41-45L1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-1889550InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2620-922X1ASSYGS5IN PIECE37InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B-9878-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-1889550PC41,42,44,45-3IN?
845-1889550PC41,42,44,45-3IN is a STEM AND DISK ASSEMBLY.
What parts can replace 845-1889550PC41,42,44,45-3IN?
There are 33 known substitutes for 845-1889550PC41,42,44,45-3IN: N10701-2BPPC6PC93INL1, 845-1889580ASSYGS3INPC41-45, 2620-922X5ASSYGS3INPC41-45L1 and 30 more. Substitute compatibility should be verified for your specific system.
Is 845-1889550PC41,42,44,45-3IN still available?
845-1889550PC41,42,44,45-3IN 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: October 2026