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9555-110-1-Y — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

9555-110-1-Y: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL SEAT, overall_height: 2.5755 INCHES NOMINAL IN, style_designator: PLAIN, seat_angle_in_deg: 5.000 NOMINAL, body_inside_diameter: 3.9375 INCHES NOMINAL IN, body_outside_diameter: 4.934 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-261-6596, 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
9555-110-1-Y
NSN: 4820-01-261-6596
FSC: 4820 — Valves, Nonpowered
CAGE: 95995 — WALWORTH CO THE (USA)
SPECIFICATIONS
materialSTEEL SEAT
overall_height2.5755 INCHES NOMINAL IN
style_designatorPLAIN
seat_angle_in_deg5.000 NOMINAL
body_inside_diameter3.9375 INCHES NOMINAL IN
body_outside_diameter4.934 INCHES NOMINAL IN
seating_surface_shapeANGULAR
NSN4820-01-261-6596
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9555-110-1-Y · 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: 4.934 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 3.9375 INCHES NOMINAL IN
•
MATERIAL: STEEL SEAT
•
SEAT ANGLE IN DEG: 5.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.5755 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER4.934 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER3.9375 INCHES NOMINAL IN
MATERIALSTEEL SEAT
SEAT ANGLE IN DEG5.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
N-10700-1Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
N-10700-1 PIECE 2 5INReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9555-110-1-Y?
9555-110-1-Y is a SEAT,VALVE.
What parts can replace 9555-110-1-Y?
There are 2 known substitutes for 9555-110-1-Y: N-10700-1, N-10700-1 PIECE 2 5IN. Substitute compatibility should be verified for your specific system.
What is the NSN for 9555-110-1-Y?
9555-110-1-Y is cataloged in the U.S. Government catalog under NSN 4820-01-261-6596. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.