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12520865 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12520865: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 0.630 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.180 INCHES NOMINAL IN, thread_series: UNEF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-295-5374, 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
12520865
NSN: 5310-01-295-5374
FSC: 5310 — Nuts and Washers
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter0.630 INCHES NOMINAL IN
thread_class2B
nut_thickness0.180 INCHES NOMINAL IN
thread_seriesUNEF
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
drive_point_depth0.120 INCHES NOMINAL IN
nominal_thread_size0.3125 INCHES IN
drive_point_diameter0.067 INCHES NOMINAL IN
drive_point_quantity6
NSN5310-01-295-5374
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12520865 · 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: UNEF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.3125 INCHES IN
•
NUT DIAMETER: 0.630 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.120 INCHES NOMINAL IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT THICKNESS: 0.180 INCHES NOMINAL IN
•
DRIVE POINT DIAMETER: 0.067 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNEF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.3125 INCHES IN
NUT DIAMETER0.630 INCHES NOMINAL IN
DRIVE POINT DEPTH0.120 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT THICKNESS0.180 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.067 INCHES NOMINAL IN
DRIVE POINT QUANTITY6
NUT STYLEROUND
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 12520865?
12520865 is a NUT,SELF-LOCKING,ROUND.
What is the NSN for 12520865?
12520865 is cataloged in the U.S. Government catalog under NSN 5310-01-295-5374. 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.