PartsTable
Technical Data Sheet
SC-D-539779-3 ✓ Verified by PartsTable
· NUT WASHER
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 NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_diameter: 0.280 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.187 INCHES MAXIMUM IN, surface_treatment: CADMIUM ALLOY OR ZINC OVERALL, nominal_thread_size: 6.00 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 5310-01-214-2649, 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
SC-D-539779-3
NSN: 5310-01-214-2649
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_diameter0.280 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.187 INCHES MAXIMUM IN
surface_treatmentCADMIUM ALLOY OR ZINC OVERALL
nominal_thread_size6.00 INCHES IN
supplementary_featuresSHEET THICKNESS: .091"- UP; HOLE IN SHEET: .187"
thread_quantity_per_inch32
part_name_assigned_by_controlling_agencyCLINCH NUT
NSN5310-01-214-2649
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SC-D-539779-3 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
NUT DIAMETER: 0.280 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 6.00 INCHES IN
THREAD QUANTITY PER INCH: 32
PILOT DIAMETER: 0.187 INCHES MAXIMUM IN
SURFACE TREATMENT: CADMIUM ALLOY OR ZINC OVERALL
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NUT DIAMETER0.280 INCHES NOMINAL IN
NOMINAL THREAD SIZE6.00 INCHES IN
THREAD QUANTITY PER INCH32
PART NAME ASSIGNED BY CONTROLLING AGENCYCLINCH NUT
PILOT DIAMETER0.187 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM ALLOY OR ZINC OVERALL
MATERIALSTEEL OVERALL
SUPPLEMENTARY FEATURESSHEET THICKNESS: .091"- UP; HOLE IN SHEET: .187"
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
107881-509Interchangeable
interchangeable cross-reference
interchangeable
GN512U632-3Interchangeable
interchangeable cross-reference
interchangeable
632NKC-(.091)Interchangeable
interchangeable cross-reference
interchangeable
S-632-3ZIInterchangeable
interchangeable cross-reference
interchangeable
S-632-3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SC-D-539779-3?
SC-D-539779-3 is a NUT,PLAIN,CLINCH.
What parts can replace SC-D-539779-3?
There are 5 known substitutes for SC-D-539779-3: 107881-509, GN512U632-3, 632NKC-(.091) and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SC-D-539779-3?
SC-D-539779-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-214-2649. This indicates validated use in U.S. government and defense supply chains.
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