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25CNNE8Y — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

25CNNE8Y: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, locking_feature: NYLON INSERT, special_features: GRADE 8;THREAD TYPE:COARSE, thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL EXCEPT INSERT, hole_nominal_thread_diameter: 0.25 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-688-4994, 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
25CNNE8Y
NSN: 5310-01-688-4994
FSC: 5310 — Nuts and Washers
CAGE: 1C8V6 — ZIEGLER BOLT & PARTS CO (USA)
SPECIFICATIONS
nut_styleHEXAGON
locking_featureNYLON INSERT
special_featuresGRADE 8;THREAD TYPE:COARSE
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL EXCEPT INSERT
hole_nominal_thread_diameter0.25 INCHES IN
hole_thread_quantity_per_inch20.0
part_name_assigned_by_controlling_agencyLOCKNUT
NSN5310-01-688-4994
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 25CNNE8Y · 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
•
HOLE THREAD QUANTITY PER INCH: 20.0
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: NYLON INSERT
•
SURFACE TREATMENT: ZINC OVERALL EXCEPT INSERT
•
NUT STYLE: HEXAGON
•
HOLE NOMINAL THREAD DIAMETER: 0.25 INCHES IN
TECHNICAL CHARACTERISTICS
HOLE THREAD QUANTITY PER INCH20.0
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATURENYLON INSERT
SPECIAL FEATURESGRADE 8;THREAD TYPE:COARSE
SURFACE TREATMENTZINC OVERALL EXCEPT INSERT
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKNUT
NUT STYLEHEXAGON
HOLE NOMINAL THREAD DIAMETER0.25 INCHES 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25CNNE8Y?
25CNNE8Y is a NUT,SELF-LOCKING,HEXAGON.
What is the NSN for 25CNNE8Y?
25CNNE8Y is cataloged in the U.S. Government catalog under NSN 5310-01-688-4994. 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.