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68A580699-2003 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68A580699-2003: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, nut_diameter: 3.061 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.500 INCHES NOMINAL IN, thread_series: UNS, locking_feature: PREVAILING TORQUE WITH METALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-185-2856, 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
68A580699-2003
NSN: 5310-01-185-2856
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
nut_diameter3.061 INCHES NOMINAL IN
thread_class3B
nut_thickness0.500 INCHES NOMINAL IN
thread_seriesUNS
locking_featurePREVAILING TORQUE WITH METALLIC INSERT
special_featuresITEM IS SIMILAR TO STYLE A76 BUT DRIVE POINTS ARE ON INNER BEARING SURFACE RATHER THAN FLANGE
thread_directionRIGHT-HAND
drive_point_depth0.165 INCHES NOMINAL IN
drive_point_width0.420 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
small_end_diameter2.600 INCHES NOMINAL IN
NSN5310-01-185-2856
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68A580699-2003 · 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: UNS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6 COND T581 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.420 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.438 INCHES IN
•
NUT DIAMETER: 3.061 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.165 INCHES NOMINAL IN
•
UNDERCUT THICKNESS: 0.410 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 COND T581 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.420 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.438 INCHES IN
NUT DIAMETER3.061 INCHES NOMINAL IN
DRIVE POINT DEPTH0.165 INCHES NOMINAL IN
UNDERCUT THICKNESS0.410 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE WITH METALLIC INSERT
NUT THICKNESS0.500 INCHES NOMINAL IN
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A580699-2003?
68A580699-2003 is a NUT,SELF-LOCKING,ROUND.
What is the NSN for 68A580699-2003?
68A580699-2003 is cataloged in the U.S. Government catalog under NSN 5310-01-185-2856. 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.