PartsTable
Technical Data Sheet
2-1640 ✓ Verified by PartsTable
EIZO · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The SWITCH,CENTRIFUGAL is a EIZO industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, seal_width: 8.000 INCHES NOMINAL IN, construction: SOLID, outside_diameter: 80.2 MILLIMETERS NOMINAL MM, special_features: FUR 3/4 IN. SIZE VALVE IN, style_designator: HEXAGON, INTERNAL THREAD, SHOULDERED.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-5116, 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
MRO MRO_GENERAL 2-1640
NSN: 5310-00-209-5116
FSC: 5310
CAGE: 78452 — MICRODOT INC EVERLOCK CHICAGO DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
seal_width8.000 INCHES NOMINAL IN
constructionSOLID
outside_diameter80.2 MILLIMETERS NOMINAL MM
special_featuresFUR 3/4 IN. SIZE VALVE IN
style_designatorHEXAGON, INTERNAL THREAD, SHOULDERED
thread_directionRIGHT-HAND
surface_treatmentPLASTIC CASE
worm_thread_quantity1
housing_bore_diameter80.000 INCHES NOMINAL IN
screw_thread_locationINTERNAL
worm_thread_directionLEFT-HAND
NSN5310-00-209-5116
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2-1640 · EIZO ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
135629Interchangeable
interchangeable cross-reference
interchangeable
1229V515Interchangeable
interchangeable cross-reference
interchangeable
939WES4Interchangeable
interchangeable cross-reference
interchangeable
5164004-00Interchangeable
interchangeable cross-reference
interchangeable
MS35335-57Interchangeable
interchangeable cross-reference
interchangeable
69778Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-1640?
2-1640 is a SWITCH,CENTRIFUGAL manufactured by EIZO. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2-1640?
There are 22 known substitutes for 2-1640: 135629, 1229V515, 939WES4 and 19 more. Substitute compatibility should be verified for your specific system.
Is 2-1640 still available?
2-1640 is currently cancelled.
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