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Technical Data Sheet
641W ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CATCH,CLAMPING is a the manufacturer industrial component. Key specifications include width: 1.030 INCHES NOMINAL IN, height: 0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, material: STEEL OVERALL, tongue_width: 0.812 INCHES NOMINAL IN, overall_width: 1.250 INCHES NOMINAL IN, overall_height: 0.510 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-331-7980, 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
641W
NSN: 5340-01-331-7980
FSC: 5340
CAGE: 14608 — EMHART INDUSTRIES INC CORBIN CABINET LOCK HARDWARE DIV (USA)
SPECIFICATIONS
width1.030 INCHES NOMINAL IN
height0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
materialSTEEL OVERALL
tongue_width0.812 INCHES NOMINAL IN
overall_width1.250 INCHES NOMINAL IN
overall_height0.510 INCHES NOMINAL IN
overall_length1.000 INCHES NOMINAL IN
style_designatorLEVER
catch_strike_styleMORTISE
material_thickness0.078 INCHES NOMINAL IN
engaging_surface_thickness0.156 INCHES NOMINAL IN
NSN5340-01-331-7980
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 641W MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL THICKNESS: 0.078 INCHES NOMINAL IN
ENGAGING SURFACE THICKNESS: 0.156 INCHES NOMINAL IN
WIDTH: 1.030 INCHES NOMINAL IN
TONGUE WIDTH: 0.812 INCHES NOMINAL IN
HEIGHT: 0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.078 INCHES NOMINAL IN
ENGAGING SURFACE THICKNESS0.156 INCHES NOMINAL IN
WIDTH1.030 INCHES NOMINAL IN
TONGUE WIDTH0.812 INCHES NOMINAL IN
OVERALL LENGTH1.000 INCHES NOMINAL IN
HEIGHT0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
OVERALL WIDTH1.250 INCHES NOMINAL IN
OVERALL HEIGHT0.510 INCHES NOMINAL IN
CATCH STRIKE STYLEMORTISE
STYLE DESIGNATORLEVER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
C205Upgraded Successor
successor cross-reference
successor
NAS1786C02-7Upgraded Successor
successor cross-reference
successor
8105-SS-0256-7Upgraded Successor
successor cross-reference
successor
53-000125-000Interchangeable
interchangeable cross-reference
interchangeable
ESA686022-2Interchangeable
interchangeable cross-reference
interchangeable
SCD508GROUP5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 641W?
641W is a CATCH,CLAMPING.
What parts can replace 641W?
There are 14 known substitutes for 641W: C205, NAS1786C02-7, 8105-SS-0256-7 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 641W?
641W is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-331-7980. This indicates validated use in U.S. government and defense supply chains.
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