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68A412812-2001 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68A412812-2001: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, hole_diameter: 2.785 INCHES NOMINAL2.785 INCHES NOMINAL IN, outside_diameter: 3.480 INCHES NOMINAL3.480 INCHES NOMINAL IN, special_features: INTERNAL KEYS PREBENTINTERNAL KEYS PREBENT, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-253-1616, 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
68A412812-2001
NSN: 5310-01-253-1616
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
hole_diameter2.785 INCHES NOMINAL2.785 INCHES NOMINAL IN
outside_diameter3.480 INCHES NOMINAL3.480 INCHES NOMINAL IN
special_featuresINTERNAL KEYS PREBENTINTERNAL KEYS PREBENT
surface_treatmentPASSIVATE OVERALL
material_thickness0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
internal_key_quantity22
internal_prebent_key_width0.230 INCHES NOMINAL0.230 INCHES NOMINAL IN
internal_prebent_key_length0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
material_document_and_classificationMIL-S-5059,1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationPS13001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key1.265 INCHES NOMINAL1.265 INCHES NOMINAL IN
NSN5310-01-253-1616
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68A412812-2001 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: PS13001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 1.265 INCHES NOMINAL1.265 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY WIDTH: 0.230 INCHES NOMINAL0.230 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.480 INCHES NOMINAL3.480 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY LENGTH: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPS13001 MFR REF SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY1.265 INCHES NOMINAL1.265 INCHES NOMINAL IN
INTERNAL PREBENT KEY WIDTH0.230 INCHES NOMINAL0.230 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,1/4 HARD MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.480 INCHES NOMINAL3.480 INCHES NOMINAL IN
MATERIAL THICKNESS0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
INTERNAL PREBENT KEY LENGTH0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
SPECIAL FEATURESINTERNAL KEYS PREBENTINTERNAL KEYS PREBENT
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 301 OVERALL
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 68A412812-2001?
68A412812-2001 is a WASHER,KEY.
What is the NSN for 68A412812-2001?
68A412812-2001 is cataloged in the U.S. Government catalog under NSN 5310-01-253-1616. 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.