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Technical Data Sheet
PartsTable / COMPONENT / 8878M
8878M ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2B, overall_height: 0.689 INCHES NOMINAL IN, outside_diameter: 0.625 INCHES NOMINAL IN, style_designator: PLUG. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-036-1169, 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
8878M
NSN: 4820-00-036-1169
FSC: 4820
CAGE: 73475 — SCHNEIDER ELECTRIC SYSTEMS USA INC (USA)
SPECIFICATIONS
materialSTEEL
seat_angle45.0 DEGREES NOMINAL
thread_class2B
overall_height0.689 INCHES NOMINAL IN
outside_diameter0.625 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size0.375 INCHES IN
thread_series_designatorUNF
NSN4820-00-036-1169
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8878M · 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
•
THREAD CLASS: 2B
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
THREAD SERIES DESIGNATOR: UNF
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
STYLE DESIGNATOR: PLUG
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
NOMINAL THREAD SIZE0.375 INCHES IN
SEAT ANGLE45.0 DEGREES NOMINAL
OVERALL HEIGHT0.689 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
MATERIALSTEEL
STYLE DESIGNATORPLUG
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
396Interchangeable
interchangeable cross-reference
interchangeable
WE-1829Interchangeable
interchangeable cross-reference
interchangeable
8878Interchangeable
interchangeable cross-reference
interchangeable
B-1612-OHInterchangeable
interchangeable cross-reference
interchangeable
MIL-E-1/1692Interchangeable
interchangeable cross-reference
interchangeable
DMS 82057BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8878M?
8878M is a DISK,VALVE.
What parts can replace 8878M?
There are 12 known substitutes for 8878M: 396, WE-1829, 8878 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8878M?
8878M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-036-1169. 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