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Technical Data Sheet
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XU-1 ✓ 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

STEAM CYLINDER,PUMP,RECIPROCATIN. Key specifications include material: COPPER ALLOY, valve_type_for_which_designed: ANGLE, valve_model_number_for_which_designed: XS1. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-184-9808, 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
XU-1
NSN: 4820-01-184-9808
FSC: 4820
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialCOPPER ALLOY
valve_type_for_which_designedANGLE
valve_model_number_for_which_designedXS1
NSN4820-01-184-9808
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: XU-1 · 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: COPPER ALLOY
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: XS1
•
VALVE TYPE FOR WHICH DESIGNED: ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
VALVE MODEL NUMBER FOR WHICH DESIGNEDXS1
VALVE TYPE FOR WHICH DESIGNEDANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
UX12-APInterchangeable
interchangeable cross-reference
interchangeable
BS5-2349Interchangeable
interchangeable cross-reference
interchangeable
BS5-2349A4PC25Interchangeable
interchangeable cross-reference
interchangeable
UU-44Interchangeable
interchangeable cross-reference
interchangeable
BS5-2349A4PC1Interchangeable
interchangeable cross-reference
interchangeable
UP-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XU-1?
XU-1 is a STEAM CYLINDER,PUMP,RECIPROCATIN.
What parts can replace XU-1?
There are 14 known substitutes for XU-1: UX12-AP, BS5-2349, BS5-2349A4PC25 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XU-1?
XU-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-184-9808. 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