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9090270-2 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

9090270-2: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 0.621 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.047 INCHES NOMINAL IN, body_inside_diameter: 0.250 INCHES NOMINAL IN, body_outside_diameter: 0.343 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-910-7944, 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
9090270-2
NSN: 4820-00-910-7944
FSC: 4820 — Valves, Nonpowered
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter0.621 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.047 INCHES NOMINAL IN
body_inside_diameter0.250 INCHES NOMINAL IN
body_outside_diameter0.343 INCHES NOMINAL IN
seating_surface_shapeFLAT
flange_seat_to_disk_end_height0.078 INCHES NOMINAL IN
NSN4820-00-910-7944
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 9090270-2 · 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: 0.078 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.621 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.343 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.047 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.078 INCHES NOMINAL IN
FLANGE DIAMETER0.621 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.343 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.250 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.047 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES 1
26707Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9090270-2?
9090270-2 is a SEAT,VALVE.
What parts can replace 9090270-2?
There is 1 known substitute for 9090270-2: 26707. Substitute compatibility should be verified for your specific system.
What is the NSN for 9090270-2?
9090270-2 is cataloged in the U.S. Government catalog under NSN 4820-00-910-7944. 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.