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102539603 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

102539603: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 1.004 INCHES NOMINAL IN, special_features: TWO DIRCULAR GROOVES, style_designator: PLAIN FLANGED, seat_angle_in_deg: 30.000 NOMINAL, under_flange_height: 1.580 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-467-9115, 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
102539603
NSN: 4820-00-467-9115
FSC: 4820 — Valves, Nonpowered
CAGE: K0654 — SAFRAN LANDING SYSTEMS UK LTD DIV SAFRAN LANDING SYSTEMS UK (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter1.004 INCHES NOMINAL IN
special_featuresTWO DIRCULAR GROOVES
style_designatorPLAIN FLANGED
seat_angle_in_deg30.000 NOMINAL
under_flange_height1.580 INCHES NOMINAL IN
body_inside_diameter0.500 INCHES NOMINAL IN
body_outside_diameter0.810 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.045 INCHES NOMINAL IN
NSN4820-00-467-9115
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 102539603 · 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: 0.045 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.004 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.810 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 1.580 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.045 INCHES NOMINAL IN
FLANGE DIAMETER1.004 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.810 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
SPECIAL FEATURESTWO DIRCULAR GROOVES
UNDER FLANGE HEIGHT1.580 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG30.000 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 1
99-1446596Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 102539603?
102539603 is a SEAT,VALVE.
What parts can replace 102539603?
There is 1 known substitute for 102539603: 99-1446596. Substitute compatibility should be verified for your specific system.
What is the NSN for 102539603?
102539603 is cataloged in the U.S. Government catalog under NSN 4820-00-467-9115. 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.