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18907N PIECE 26 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

18907N PIECE 26: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SEAT, flange_diameter: 2.062 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.250 INCHES NOMINAL IN, body_inside_diameter: 1.187 INCHES NOMINAL IN, body_outside_diameter: 1.748 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-310-0021, 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
18907N PIECE 26
NSN: 4820-01-310-0021
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SEAT
flange_diameter2.062 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.250 INCHES NOMINAL IN
body_inside_diameter1.187 INCHES NOMINAL IN
body_outside_diameter1.748 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.687 INCHES NOMINAL IN
NSN4820-01-310-0021
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 18907N PIECE 26 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.687 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.062 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.748 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 1.187 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING SEAT
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.687 INCHES NOMINAL IN
FLANGE DIAMETER2.062 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.748 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER1.187 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING SEAT
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 1
18907NReference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 18907N PIECE 26?
18907N PIECE 26 is a SEAT,VALVE.
What parts can replace 18907N PIECE 26?
There is 1 known substitute for 18907N PIECE 26: 18907N. Substitute compatibility should be verified for your specific system.
What is the NSN for 18907N PIECE 26?
18907N PIECE 26 is cataloged in the U.S. Government catalog under NSN 4820-01-310-0021. 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.