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Technical Data Sheet
PartsTable / COMPONENT / 2640-611 1/2IN
2640-611 1/2IN ✓ 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 2640-611 1/2IN 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 4820-01-213-8011, 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
2640-611 1/2IN
NSN: 4820-01-213-8011
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
Part Number2640-611 1/2IN
NSN4820-01-213-8011
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2640-611 1/2IN · 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
•
MATERIAL: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
•
FURNISHED ITEMS AND QUANTITY: 2 NUT AND 2 TAILPIECE
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
•
VALVE OPERATION METHOD: MANUAL
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
CONNECTION STYLE: SOCKET WITH BRAZING RING ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
FURNISHED ITEMS AND QUANTITY2 NUT AND 2 TAILPIECE
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORSTRAIGHT THRU
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
VALVE OPERATION METHODMANUAL
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2050997Interchangeable
interchangeable cross-reference
interchangeable
2640-611Interchangeable
interchangeable cross-reference
interchangeable
2640-611PIECE32 1-4IPSInterchangeable
interchangeable cross-reference
interchangeable
845-2050997Interchangeable
interchangeable cross-reference
interchangeable
845-2050997ASSYFInterchangeable
interchangeable cross-reference
interchangeable
2640-612Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-611 1/2IN?
2640-611 1/2IN is a 2640-611 1/2IN.
What parts can replace 2640-611 1/2IN?
There are 13 known substitutes for 2640-611 1/2IN: 2050997, 2640-611, 2640-611PIECE32 1-4IPS and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-611 1/2IN?
2640-611 1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-213-8011. 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