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PartsTable / COMPONENT / 154-00401
154-00401 ✓ 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 OVERALL, flange_diameter: 1.625 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 45.000 NOMINAL, under_flange_height: 0.125 INCHES NOMINAL IN, body_inside_diameter: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-393-4283, 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
154-00401
NSN: 4820-00-393-4283
FSC: 4820
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_diameter1.625 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg45.000 NOMINAL
under_flange_height0.125 INCHES NOMINAL IN
body_inside_diameter0.500 INCHES NOMINAL IN
body_outside_diameter1.250 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.500 INCHES NOMINAL IN
NSN4820-00-393-4283
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 154-00401 · 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
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
BODY OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: ANGULAR
•
MATERIAL: STEEL OVERALL
•
UNDER FLANGE HEIGHT: 0.125 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE IN DEG45.000 NOMINAL
BODY OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
SEATING SURFACE SHAPEANGULAR
MATERIALSTEEL OVERALL
UNDER FLANGE HEIGHT0.125 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT0.500 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
FLANGE DIAMETER1.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
234113Interchangeable
interchangeable cross-reference
interchangeable
MPD104-9Interchangeable
interchangeable cross-reference
interchangeable
13206E7460Interchangeable
interchangeable cross-reference
interchangeable
210085Interchangeable
interchangeable cross-reference
interchangeable
592726Interchangeable
interchangeable cross-reference
interchangeable
TURCOAT LIQUID ACCELAGOLDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 154-00401?
154-00401 is a SEAT,VALVE.
What parts can replace 154-00401?
There are 8 known substitutes for 154-00401: 234113, MPD104-9, 13206E7460 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 154-00401?
154-00401 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-393-4283. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026