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Technical Data Sheet
143620 ✓ Verified by PartsTable
· 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 KEY,TELEGRAPH is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, overall_width: 3.500 INCHES NOMINAL IN, overall_height: 3.000 INCHES NOMINAL IN, overall_length: 6.250 INCHES NOMINAL IN, contact_material: SILVER OR TUNGSTEN, contact_surface_diameter: 0.250 INCHES 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 5310-00-014-3620, 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 143620
NSN: 5310-00-014-3620
FSC: 5310
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
shapeRECTANGULAR
overall_width3.500 INCHES NOMINAL IN
overall_height3.000 INCHES NOMINAL IN
overall_length6.250 INCHES NOMINAL IN
contact_materialSILVER OR TUNGSTEN
contact_quantity2
contact_surface_diameter0.250 INCHES IN
nondefinitive_spec/std_dataJ-36 TYPE
NSN5310-00-014-3620
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 143620 · OEM ⚠ 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
KEY FEATURES
THREAD CLASS: 2B
THREAD SERIES: UNF
PLATE WIDTH: 0.562 INCHES NOMINAL IN
THREAD QUANTITY PER INCH: 24
NOMINAL THREAD SIZE: 0.312 INCHES IN
NUT LENGTH: 0.875 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
NUT STYLE: PLATE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B
THREAD SERIESUNF
PLATE WIDTH0.562 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24
NOMINAL THREAD SIZE0.312 INCHES IN
NUT LENGTH0.875 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEPLATE
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
58063Interchangeable
interchangeable cross-reference
interchangeable
ORIGINALInterchangeable
interchangeable cross-reference
interchangeable
J36Interchangeable
interchangeable cross-reference
interchangeable
ORIGINAL-STANDARDInterchangeable
interchangeable cross-reference
interchangeable
5017-15Interchangeable
interchangeable cross-reference
interchangeable
FP116Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 143620?
143620 is a KEY,TELEGRAPH. It is classified as a MRO (MRO_GENERAL).
What parts can replace 143620?
There are 6 known substitutes for 143620: 58063, ORIGINAL, J36 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 143620?
143620 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-014-3620. This indicates validated use in U.S. government and defense supply chains.
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