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HNC-3 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HNC-3: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: PRECISION TAPPED; BLACK OXIDE FINISH - HEAVY PATTERN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-511-0243, 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
HNC-3
NSN: 5310-01-511-0243
FSC: 5310 — Nuts and Washers
CAGE: 01599 — REID SUPPLY COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresPRECISION TAPPED; BLACK OXIDE FINISH - HEAVY PATTERN
thread_directionRIGHT-HAND
features_providedCASEHARDENED
surface_treatmentOXIDE OVERALL
width_across_flats0.680 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeWASHER FACED
NSN5310-01-511-0243
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HNC-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
•
WIDTH ACROSS FLATS: 0.680 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
SUPPLEMENTARY FEATURES: CAGE CALLS THIS: HARDENED HES NUT 3/8-16
•
FEATURES PROVIDED: CASEHARDENED
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.680 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
SUPPLEMENTARY FEATURESCAGE CALLS THIS: HARDENED HES NUT 3/8-16
FEATURES PROVIDEDCASEHARDENED
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
SPECIAL FEATURESPRECISION TAPPED; BLACK OXIDE FINISH - HEAVY PATTERN
SURFACE TREATMENTOXIDE OVERALL
NUT STYLEHEXAGON
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HNC-3?
HNC-3 is a NUT,PLAIN,HEXAGON.
What is the NSN for HNC-3?
HNC-3 is cataloged in the U.S. Government catalog under NSN 5310-01-511-0243. This indicates validated use in U.S. government and defense supply chains.
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