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Technical Data Sheet
2640-801X01 PC 15 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-488-5542, 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
2640-801X01 PC 15
NSN: 4820-01-488-5542
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsITEMS THAT SUPPORT A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
NSN4820-01-488-5542
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 2640-801X01 PC 15 · 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
BODY INSIDE DIAMETER: 3.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: GRAPHITE IMPREGNATED URETHANE, COMP MD-7166 MFR REF SINGLE MATERIAL RESPONSE SEAT
MATERIAL: PLASTIC POLYURETHANE SEAT
STYLE DESIGNATOR: PLAIN
BODY OUTSIDE DIAMETER: 4.484 INCHES NOMINAL IN
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
BODY INSIDE DIAMETER3.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONGRAPHITE IMPREGNATED URETHANE, COMP MD-7166 MFR REF SINGLE MATERIAL RESPONSE SEAT
MATERIALPLASTIC POLYURETHANE SEAT
STYLE DESIGNATORPLAIN
END ITEM IDENTIFICATIONW/S DESIGNATOR WASP CLASS LHD
BODY OUTSIDE DIAMETER4.484 INCHES NOMINAL IN
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESNEXT HIGHER ASSEMBLY BALL VALVE, 0-700 PSI WP
OVERALL HEIGHT0.562 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.000 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2643-820-88 ITEM 11Interchangeable
interchangeable cross-reference
interchangeable
2640-801X01 PIECE 22Interchangeable
interchangeable cross-reference
interchangeable
56-97-0727Interchangeable
interchangeable cross-reference
interchangeable
563-7286781Interchangeable
interchangeable cross-reference
interchangeable
2640-801X01 ITEM 16Interchangeable
interchangeable cross-reference
interchangeable
264080101-0016Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2640-801X01 PC 15?
2640-801X01 PC 15 is a SEAT,VALVE.
What parts can replace 2640-801X01 PC 15?
There are 10 known substitutes for 2640-801X01 PC 15: 2643-820-88 ITEM 11, 2640-801X01 PIECE 22, 56-97-0727 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2640-801X01 PC 15?
2640-801X01 PC 15 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-488-5542. This indicates validated use in U.S. government and defense supply chains.
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