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XA1055 ✓ 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 PILOT ASSEMBLY,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRONZE; 1 SPRING; 2.125 IN. O/A DIA; 3.325 IN.

O/A HT; 1 END EXTERNALLY THD 1.000 IN. IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-369-3708, 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
XA1055
NSN: 4820-00-369-3708
FSC: 4820
CAGE: 70255 — EMERSON ELECTRIC CO ALCO CONTROLS DIV (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRONZE; 1 SPRING; 2.125 IN. O/A DIA; 3.325 IN. O/A HT; 1 END EXTERNALLY THD 1.000 IN. IN
NSN4820-00-369-3708
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: XA1055 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRONZE; 1 SPRING; 2.125 IN. O/A DIA; 3.325 IN. O/A HT; 1 END EXTERNALLY THD 1.000 IN. IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRONZE; 1 SPRING; 2.125 IN. O/A DIA; 3.325 IN. O/A HT; 1 END EXTERNALLY THD 1.000 IN. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
N178560Interchangeable
interchangeable cross-reference
interchangeable
B68Interchangeable
interchangeable cross-reference
interchangeable
B68XInterchangeable
interchangeable cross-reference
interchangeable
Y68Interchangeable
interchangeable cross-reference
interchangeable
060908Interchangeable
interchangeable cross-reference
interchangeable
X50-43Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XA1055?
XA1055 is a PILOT ASSEMBLY,VALVE.
What parts can replace XA1055?
There are 9 known substitutes for XA1055: N178560, B68, B68X and 6 more. Substitute compatibility should be verified for your specific system.
Is XA1055 still available?
XA1055 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