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Technical Data Sheet
PartsTable / COMPONENT / 618-3-4
618-3-4 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,PRESSURE is a the manufacturer industrial component. Key specifications include depth: 0.562 INCHES NOMINAL IN, flange: NOT PROVIDED, material: COPPER ALLOY BODY, pail_hook: NOT PROVIDED, body_height: 1.375 INCHES NOMINAL IN, handle_type: LOOSE KEY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6640-00-359-9642, 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
618-3-4
NSN: 6640-00-359-9642
FSC: 6640
CAGE: 02BZ8 — PETROLEUM ANALYZER CO L.P (USA)
SPECIFICATIONS
depth0.562 INCHES NOMINAL IN
flangeNOT PROVIDED
materialCOPPER ALLOY BODY
pail_hookNOT PROVIDED
body_height1.375 INCHES NOMINAL IN
handle_typeLOOSE KEY
seat_designCOMPRESSION
bevel_recessPROVIDED
top_diameter4.000 INCHES NOMINAL IN
overall_width1.000 INCHES NOMINAL IN
terminal_typeSCREW
locking_deviceINCLUDED
NSN6640-00-359-9642
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PRESSURE TITLE COMPONENT PN 618-3-4 MFR SWITCH,PRESSURE
KEY FEATURES
•
OVERALL THICKNESS: 0.750 INCHES NOMINAL IN
•
DEPTH: 0.562 INCHES NOMINAL IN
•
MATERIAL: VERMICULITE AND CEMENT
•
TOP DIAMETER: 4.000 INCHES NOMINAL IN
•
BEVEL RECESS: PROVIDED
•
CENTER HOLE DIAMETER: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL THICKNESS0.750 INCHES NOMINAL IN
DEPTH0.562 INCHES NOMINAL IN
MATERIALVERMICULITE AND CEMENT
TOP DIAMETER4.000 INCHES NOMINAL IN
OVERALL WIDTH4.750 INCHES NOMINAL IN
BEVEL RECESSPROVIDED
CENTER HOLE DIAMETER2.000 INCHES NOMINAL IN
OVERALL LENGTH4.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
6183-4Interchangeable
interchangeable cross-reference
interchangeable
5930PL1366183Interchangeable
interchangeable cross-reference
interchangeable
J40-14820Interchangeable
interchangeable cross-reference
interchangeable
00008587618342Interchangeable
interchangeable cross-reference
interchangeable
52161 AND 51020Interchangeable
interchangeable cross-reference
interchangeable
80-315Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 618-3-4?
618-3-4 is a SWITCH,PRESSURE.
What parts can replace 618-3-4?
There are 9 known substitutes for 618-3-4: 6183-4, 5930PL1366183, J40-14820 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 618-3-4?
618-3-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6640-00-359-9642. 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