PartsTable
Technical Data Sheet
M491STK ✓ 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 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SQUARE, nut_height: 0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-021-6314, 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
M491STK
NSN: 5930-00-021-6314
FSC: 5930
CAGE: 13445 — COLE HERSEE COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSQUARE
nut_height0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.606 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch16
nondefinitive_spec/std_dataB-2 TYPE
NSN5930-00-021-6314
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH TITLE COMPONENT PN M491STK MFR SWITCH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
50-2L3Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEB2Interchangeable
interchangeable cross-reference
interchangeable
M491Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M491STK?
M491STK is a SWITCH.
What parts can replace M491STK?
There are 3 known substitutes for M491STK: 50-2L3, FFB571TYPEB2, M491. Substitute compatibility should be verified for your specific system.
What is the NSN for M491STK?
M491STK is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-021-6314. This indicates validated use in U.S. government and defense supply chains.
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