PartsTable
Technical Data Sheet
9878-7YA AND 9878-8-11-1 ✓ 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,STEM ASSEMBLY is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-5302, 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
9878-7YA AND 9878-8-11-1
NSN: 4820-01-145-5302
FSC: 4820
CAGE: 63686 — THE WALWORTH COMPANY (USA)
SPECIFICATIONS
Part Number9878-7YA AND 9878-8-11-1
NSN4820-01-145-5302
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 9878-7YA AND 9878-8-11-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
10030324Interchangeable
interchangeable cross-reference
interchangeable
10032572Interchangeable
interchangeable cross-reference
interchangeable
9878-8-7-1Interchangeable
Same NIIN cross-reference
interchangeable
M0DEL5275-5INInterchangeable
Same NIIN cross-reference
interchangeable
9878-7YAInterchangeable
Same NIIN cross-reference
interchangeable
7878-7YAND7878-Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9878-7YA AND 9878-8-11-1?
9878-7YA AND 9878-8-11-1 is a DISK,STEM ASSEMBLY.
What parts can replace 9878-7YA AND 9878-8-11-1?
There are 6 known substitutes for 9878-7YA AND 9878-8-11-1: 10030324, 10032572, 9878-8-7-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9878-7YA AND 9878-8-11-1?
9878-7YA AND 9878-8-11-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-145-5302. This indicates validated use in U.S. government and defense supply chains.
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