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2640-611 ASSYB PIECE 13 — 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 RETAINER,SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_length: 1.030 INCHES NOMINAL IN, inside_diameter: 0.375 INCHES NOMINAL IN, outside_diameter: 0.872 INCHES NOMINAL IN, nominal_thread_size: 1.375 INCHES IN, valve_design_control_activity: 80064. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-107-7001, 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 ASSYB PIECE 13
NSN: 4820-01-107-7001
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length1.030 INCHES NOMINAL IN
inside_diameter0.375 INCHES NOMINAL IN
outside_diameter0.872 INCHES NOMINAL IN
nominal_thread_size1.375 INCHES IN
valve_design_control_activity80064
valve_size_for_which_designed0.250 INCHES IN
valve_model_number_for_which_designedSS845-2050997
NSN4820-01-107-7001
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2640-611 ASSYB PIECE 13 · 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
•
OUTSIDE DIAMETER: 0.872 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: SS845-2050997
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
MATERIAL: COPPER ALLOY
•
VALVE DESIGN CONTROL ACTIVITY: 80064
•
VALVE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.872 INCHES NOMINAL IN
INSIDE DIAMETER0.375 INCHES NOMINAL IN
VALVE MODEL NUMBER FOR WHICH DESIGNEDSS845-2050997
NOMINAL THREAD SIZE1.375 INCHES IN
MATERIALCOPPER ALLOY
OVERALL LENGTH1.030 INCHES NOMINAL IN
VALVE DESIGN CONTROL ACTIVITY80064
VALVE SIZE FOR WHICH DESIGNED0.250 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
SS845-2050997ASSYB1-4INInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
845-2050997-HInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SS845-2050997InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2050997InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2640-611InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2640-611PIECE32 1-4IPSInterchangeableGOVERNMENT 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 ASSYB PIECE 13?
2640-611 ASSYB PIECE 13 is a RETAINER,SEAT,VALVE.
What parts can replace 2640-611 ASSYB PIECE 13?
There are 11 known substitutes for 2640-611 ASSYB PIECE 13: SS845-2050997ASSYB1-4IN, 845-2050997-H, SS845-2050997 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-611 ASSYB PIECE 13?
2640-611 ASSYB PIECE 13 is cataloged in the Federal Logistics Information System under NSN 4820-01-107-7001. 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