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Technical Data Sheet
PartsTable / COMPONENT / 2640-163
2640-163 ✓ 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,BALL VALVE is a the manufacturer industrial component. Key specifications include length: 3.500 INCHES NOMINAL IN, material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OVERALL, thread_length: 1.125 INCHES NOMINAL RIGHT EXTERNAL IN, style_designator: PROJECTION BOTH ENDS, width_across_flats: 0.437 INCHES NOMINAL IN, nominal_thread_size: 0.250 INCHES LEFT EXTERNAL 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 4820-01-161-6495, 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
2640-163
NSN: 4820-01-161-6495
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
length3.500 INCHES NOMINAL IN
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OVERALL
thread_length1.125 INCHES NOMINAL RIGHT EXTERNAL IN
style_designatorPROJECTION BOTH ENDS
width_across_flats0.437 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES LEFT EXTERNAL IN
cross-sectional_shapeHEXAGON
left_projection_length0.375 INCHES NOMINAL IN
right_projection_length1.125 INCHES NOMINAL IN
left_projection_diameter0.250 INCHES NOMINAL IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
right_projection_diameter0.250 INCHES NOMINAL IN
NSN4820-01-161-6495
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2640-163 · 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
•
SUPPLY ITEMS AND QUANTITIES: BALL 1; SEAT 2
•
COMPONENT QUANTITY: 3
TECHNICAL CHARACTERISTICS (FLIS)
SUPPLY ITEMS AND QUANTITIESBALL 1; SEAT 2
COMPONENT QUANTITY3
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
845-2007662 PC 2, PC 4,3/4 IN.Interchangeable
interchangeable cross-reference
interchangeable
2640-163Interchangeable
interchangeable cross-reference
interchangeable
845-2007662Interchangeable
interchangeable cross-reference
interchangeable
264016Interchangeable
interchangeable cross-reference
interchangeable
SS845-2007662Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-163?
2640-163 is a PARTS KIT,BALL VALVE.
What parts can replace 2640-163?
There are 5 known substitutes for 2640-163: 845-2007662 PC 2, PC 4,3/4 IN., 2640-163, 845-2007662 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-163?
2640-163 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-161-6495. 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