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79NC3-02 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

79NC3-02: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.349 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN, pilot_length: 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-650-1959, 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
79NC3-02
NSN: 5310-00-650-1959
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.349 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN
pilot_length0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
pilot_diameter0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
NSN5310-00-650-1959
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 79NC3-02 · 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
•
WIDTH ACROSS FLATS: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
PILOT DIAMETER: 0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
PILOT DIAMETER0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
PILOT LENGTH0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.349 INCHES MINIMUM AND 0.361 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
327604-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 79NC3-02?
79NC3-02 is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 79NC3-02?
There is 1 known substitute for 79NC3-02: 327604-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 79NC3-02?
79NC3-02 is cataloged in the U.S. Government catalog under NSN 5310-00-650-1959. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.