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146-00109-1 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

146-00109-1: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_diameter: 0.750 INCHES NOMINAL IN, special_features: FURNISHED W/WASHER,PLASTIC INSERT AND RETAINING CAP, style_designator: PLAIN FLANGED, seat_angle_in_deg: 30.000 NOMINAL, under_flange_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-783-9996, 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
146-00109-1
NSN: 4820-00-783-9996
FSC: 4820 — Valves, Nonpowered
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_diameter0.750 INCHES NOMINAL IN
special_featuresFURNISHED W/WASHER,PLASTIC INSERT AND RETAINING CAP
style_designatorPLAIN FLANGED
seat_angle_in_deg30.000 NOMINAL
under_flange_height0.125 INCHES NOMINAL IN
body_inside_diameter0.188 INCHES NOMINAL IN
body_outside_diameter0.719 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.203 INCHES NOMINAL IN
NSN4820-00-783-9996
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 146-00109-1 · 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: 0.203 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.750 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.719 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
BODY INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.203 INCHES NOMINAL IN
FLANGE DIAMETER0.750 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.719 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
BODY INSIDE DIAMETER0.188 INCHES NOMINAL IN
SPECIAL FEATURESFURNISHED W/WASHER,PLASTIC INSERT AND RETAINING CAP
UNDER FLANGE HEIGHT0.125 INCHES NOMINAL IN
MATERIALSTEEL 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

No substitute or cross-reference records for this part.

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 146-00109-1?
146-00109-1 is a SEAT,VALVE.
What is the NSN for 146-00109-1?
146-00109-1 is cataloged in the U.S. Government catalog under NSN 4820-00-783-9996. 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.