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2640-611 ASSYE — Technical Data Sheet

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— · 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 VALVE,BALL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 BODY, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, connection_style: SOCKET WITH BRAZING RING ALL ENDS, style_designator: STRAIGHT THRU, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: MANUAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-155-5029, 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 ASSYE
NSN: 4820-01-155-5029
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialSTEEL COMP 304 BODY
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
connection_styleSOCKET WITH BRAZING RING ALL ENDS
style_designatorSTRAIGHT THRU
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodMANUAL
media_for_which_designedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
nominal_pipe_size_accommodated0.750 INCHES ALL ENDS IN
material_document_and_classificationQQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
NSN4820-01-155-5029
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2640-611 ASSYE · 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
•
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
•
MATERIAL: STEEL COMP 304 BODY
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY
•
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MATERIALSTEEL COMP 304 BODY
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY
STYLE DESIGNATORSTRAIGHT THRU
MATERIALCOPPER ALLOY 630 STEM
MATERIALPLASTIC POLYAMIDE NYLON SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-465,COMP 630 FED SPEC SINGLE MATERIAL RESPONSE STEM
VALVE OPERATION METHODMANUAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
122-7270390 PC 53InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
607-6225287 ITEInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2498-00-313-9 S Z-8TO20 TY-IInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2640612InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2050997InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2640-611InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-611 ASSYE?
2640-611 ASSYE is a VALVE,BALL.
What parts can replace 2640-611 ASSYE?
There are 21 known substitutes for 2640-611 ASSYE: 122-7270390 PC 53, 607-6225287 ITE, 2498-00-313-9 S Z-8TO20 TY-I and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-611 ASSYE?
2640-611 ASSYE is cataloged in the Federal Logistics Information System under NSN 4820-01-155-5029. 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: October 2026