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Technical Data Sheet
PartsTable / COMPONENT / 146-00425
146-00425 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, flange_diameter: 1.063 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 0.484 INCHES NOMINAL IN, body_inside_diameter: 0.500 INCHES NOMINAL IN, body_outside_diameter: 0.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-019-4706, 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
146-00425
NSN: 4820-01-019-4706
FSC: 4820
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
flange_diameter1.063 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height0.484 INCHES NOMINAL IN
body_inside_diameter0.500 INCHES NOMINAL IN
body_outside_diameter0.875 INCHES NOMINAL IN
seating_surface_shapeANGULAR
material_document_and_classificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4820-01-019-4706
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 146-00425 · 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
•
MATERIAL: STEEL COMP 416 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
•
UNDER FLANGE HEIGHT: 0.484 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
FLANGE DIAMETER: 1.063 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.875 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.484 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
FLANGE DIAMETER1.063 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.875 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
23417Interchangeable
interchangeable cross-reference
interchangeable
12576PC4Interchangeable
interchangeable cross-reference
interchangeable
146-00425-1Interchangeable
interchangeable cross-reference
interchangeable
M13962EPC18SPCLNInterchangeable
interchangeable cross-reference
interchangeable
146-00425-1SPCLNInterchangeable
interchangeable cross-reference
interchangeable
8J2173Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 146-00425?
146-00425 is a SEAT,VALVE.
What parts can replace 146-00425?
There are 11 known substitutes for 146-00425: 23417, 12576PC4, 146-00425-1 and 8 more. Substitute compatibility should be verified for your specific system.
Is 146-00425 still available?
146-00425 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026