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79NU2816-058 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

79NU2816-058: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 NUT, nut_style: HEXAGON, nut_height: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-417-8638, 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
79NU2816-058
NSN: 5310-01-417-8638
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 NUT
nut_styleHEXAGON
nut_height0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
thread_class3B
thread_seriesUNJC
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL EXCEPT INSERT
width_across_flats0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-01-417-8638
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 79NU2816-058 · 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: 0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN
•
THREAD SERIES: UNJC
•
TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE NUT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN
THREAD SERIESUNJC
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE NUT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL EXCEPT INSERT
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 1
30CT93-102PC26Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 79NU2816-058?
79NU2816-058 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 79NU2816-058?
There is 1 known substitute for 79NU2816-058: 30CT93-102PC26. Substitute compatibility should be verified for your specific system.
What is the NSN for 79NU2816-058?
79NU2816-058 is cataloged in the U.S. Government catalog under NSN 5310-01-417-8638. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.