PartsTable
Technical Data Sheet
C2778 ✓ 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 FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: FLARED (TUBE) FIRST END, style_designator: STRAIGHT THRU. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-175-6238, 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
C2778
NSN: 4820-00-175-6238
FSC: 4820
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleFLARED (TUBE) FIRST END
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
mounting_positionHORIZONTAL OR VERTICAL
surface_treatmentPASSIVATE
disk_loading_methodSPRING
flow_control_devicePOPPET
nominal_thread_size0.438 INCHES SECOND END IN
NSN4820-00-175-6238
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: C2778 · 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
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
DISK LOADING METHOD: SPRING
CONNECTION STYLE: FLARED (TUBE) FIRST END
NOMINAL THREAD SIZE: 0.438 INCHES SECOND END IN
MATERIAL: STEEL CORROSION RESISTING OVERALL
SEAT ANGLE: 37.0 DEGREES FIRST END
FLOW CONTROL DEVICE: POPPET
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
DISK LOADING METHODSPRING
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
MATERIALSTEEL CORROSION RESISTING OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
SEAT ANGLE37.0 DEGREES FIRST END
FLOW CONTROL DEVICEPOPPET
THREAD SERIES DESIGNATORUNF ALL ENDS
THREAD CLASS2A ALL ENDS A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
PER15Interchangeable
interchangeable cross-reference
interchangeable
3107Interchangeable
interchangeable cross-reference
interchangeable
CW1107MPInterchangeable
interchangeable cross-reference
interchangeable
C2778-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C2778?
C2778 is a FILTER ELEMENT,FLUID.
What parts can replace C2778?
There are 4 known substitutes for C2778: PER15, 3107, CW1107MP and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C2778?
C2778 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-175-6238. This indicates validated use in U.S. government and defense supply chains.
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