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Technical Data Sheet
PartsTable / COMPONENT / 10643-1 AND 10643-2
10643-1 AND 10643-2 ✓ 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 PARTS KIT,VALVE is a the manufacturer industrial component. Key specifications include nonsupply_items_and_quantities: PISTON BODY 1; RINGS 2; STEM 1. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-275-6995, 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
10643-1 AND 10643-2
NSN: 4820-01-275-6995
FSC: 4820
CAGE: 64042 — WATSON MCDANIEL CO (USA)
SPECIFICATIONS
component_quantity4
nonsupply_items_and_quantitiesPISTON BODY 1; RINGS 2; STEM 1
NSN4820-01-275-6995
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 10643-1 AND 10643-2 · 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
•
NONSUPPLY ITEMS AND QUANTITIES: PISTON BODY 1; RINGS 2; STEM 1
•
COMPONENT QUANTITY: 4
TECHNICAL CHARACTERISTICS (FLIS)
NONSUPPLY ITEMS AND QUANTITIESPISTON BODY 1; RINGS 2; STEM 1
COMPONENT QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
731697PC2Interchangeable
interchangeable cross-reference
interchangeable
731697Interchangeable
interchangeable cross-reference
interchangeable
731697-2Interchangeable
interchangeable cross-reference
interchangeable
10643Interchangeable
interchangeable cross-reference
interchangeable
2157387Interchangeable
interchangeable cross-reference
interchangeable
2157387-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10643-1 AND 10643-2?
10643-1 AND 10643-2 is a PARTS KIT,VALVE.
What parts can replace 10643-1 AND 10643-2?
There are 15 known substitutes for 10643-1 AND 10643-2: 731697PC2, 731697, 731697-2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10643-1 AND 10643-2?
10643-1 AND 10643-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-275-6995. 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