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Technical Data Sheet
PartsTable / COMPONENT / 87643-9804 ITEM 8
87643-9804 ITEM 8 ✓ 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 STOP PLATE,VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: 7.735 IN. OD; 4.520 IN.

ID; 0.140 IN. THK;NICKEL,COPPER 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 4820-01-137-4631, 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
87643-9804 ITEM 8
NSN: 4820-01-137-4631
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
general_characteristics_item_description7.735 IN. OD; 4.520 IN. ID; 0.140 IN. THK;NICKEL,COPPER IN
NSN4820-01-137-4631
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 87643-9804 ITEM 8 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 7.735 IN. OD; 4.520 IN. ID; 0.140 IN. THK;NICKEL,COPPER IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION7.735 IN. OD; 4.520 IN. ID; 0.140 IN. THK;NICKEL,COPPER IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
4675792-0034Interchangeable
interchangeable cross-reference
interchangeable
87643-9804Interchangeable
interchangeable cross-reference
interchangeable
501-4675792 ITEM 34Interchangeable
interchangeable cross-reference
interchangeable
501-4675792 ITEM 16Interchangeable
interchangeable cross-reference
interchangeable
87643-9804 ITEM 16Interchangeable
interchangeable cross-reference
interchangeable
501-4675792Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 87643-9804 ITEM 8?
87643-9804 ITEM 8 is a STOP PLATE,VALVE.
What parts can replace 87643-9804 ITEM 8?
There are 22 known substitutes for 87643-9804 ITEM 8: 4675792-0034, 87643-9804, 501-4675792 ITEM 34 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 87643-9804 ITEM 8?
87643-9804 ITEM 8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-137-4631. 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