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PartsTable / COMPONENT / D15-631BPC642
D15-631BPC642 ✓ 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 flange_diameter: 2.500 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 45.000 NOMINAL, under_flange_height: 0.688 INCHES NOMINAL IN, body_inside_diameter: 1.500 INCHES NOMINAL IN, seating_surface_shape: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-218-6079, 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
D15-631BPC642
NSN: 4820-00-218-6079
FSC: 4820
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
flange_diameter2.500 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
seat_angle_in_deg45.000 NOMINAL
under_flange_height0.688 INCHES NOMINAL IN
body_inside_diameter1.500 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.250 INCHES NOMINAL IN
NSN4820-00-218-6079
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D15-631BPC642 · 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 DIAMETER: 2.500 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
FLANGE SEAT TO DISK END HEIGHT: 0.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
UNDER FLANGE HEIGHT: 0.688 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: ANGULAR
•
BODY INSIDE DIAMETER: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER2.500 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.000 NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.250 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED FLANGED
UNDER FLANGE HEIGHT0.688 INCHES NOMINAL IN
SEATING SURFACE SHAPEANGULAR
BODY INSIDE DIAMETER1.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
9962Interchangeable
interchangeable cross-reference
interchangeable
40-654-1009-09Interchangeable
interchangeable cross-reference
interchangeable
TMT-99-62Interchangeable
interchangeable cross-reference
interchangeable
MIC962-1BInterchangeable
interchangeable cross-reference
interchangeable
9401-00007Interchangeable
interchangeable cross-reference
interchangeable
SC6919FHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D15-631BPC642?
D15-631BPC642 is a SEAT,VALVE.
What parts can replace D15-631BPC642?
There are 15 known substitutes for D15-631BPC642: 9962, 40-654-1009-09, TMT-99-62 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D15-631BPC642?
D15-631BPC642 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-218-6079. 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