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PartsTable / COMPONENT / 255584 PIECE 27
255584 PIECE 27 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, seat_radius: 0.469 INCHES NOMINAL IN, overall_height: 0.375 INCHES NOMINAL IN, style_designator: PLAIN, body_inside_diameter: 1.250 INCHES NOMINAL IN, body_outside_diameter: 2.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-263-3108, 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
255584 PIECE 27
NSN: 4820-01-263-3108
FSC: 4820
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
seat_radius0.469 INCHES NOMINAL IN
overall_height0.375 INCHES NOMINAL IN
style_designatorPLAIN
body_inside_diameter1.250 INCHES NOMINAL IN
body_outside_diameter2.125 INCHES NOMINAL IN
seating_surface_shapeRADIAL
NSN4820-01-263-3108
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 255584 PIECE 27 · 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
•
BODY OUTSIDE DIAMETER: 2.125 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: RADIAL
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL: PLASTIC OVERALL
•
SEAT RADIUS: 0.469 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER2.125 INCHES NOMINAL IN
OVERALL HEIGHT0.375 INCHES NOMINAL IN
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN
MATERIALPLASTIC OVERALL
SEAT RADIUS0.469 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
255584Interchangeable
interchangeable cross-reference
interchangeable
255584PC13DLRNQAInterchangeable
interchangeable cross-reference
interchangeable
255584PC14Interchangeable
interchangeable cross-reference
interchangeable
255584PC14DLRNQAInterchangeable
interchangeable cross-reference
interchangeable
3902323Interchangeable
interchangeable cross-reference
interchangeable
6-51414-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 255584 PIECE 27?
255584 PIECE 27 is a SEAT,VALVE.
What parts can replace 255584 PIECE 27?
There are 8 known substitutes for 255584 PIECE 27: 255584, 255584PC13DLRNQA, 255584PC14 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 255584 PIECE 27?
255584 PIECE 27 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-263-3108. 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