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75678M610D — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

75678M610D: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 2.200 MILLIMETERS MINIMUM MM, lubrication: DRY FILM LUBRICANT, hardness_rating: 43.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-480-0995, 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
75678M610D
NSN: 5310-01-480-0995
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleDOUBLE HEXAGON
nut_height2.200 MILLIMETERS MINIMUM MM
lubricationDRY FILM LUBRICANT
hardness_rating43.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats11.050 MILLIMETERS MINIMUM MM
counterbore_diameter7.000 MILLIMETERS MAXIMUM FIRST END MM
thread_pitch_in_millimeters0.000
NSN5310-01-480-0995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 75678M610D · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
WIDTH ACROSS FLATS: 11.050 MILLIMETERS MINIMUM MM
•
THREAD PITCH IN MILLIMETERS: 0.000
•
HARDNESS RATING: 43.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
COUNTERBORE DIAMETER: 7.000 MILLIMETERS MAXIMUM FIRST END MM
•
NUT HEIGHT: 2.200 MILLIMETERS MINIMUM MM
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
WIDTH ACROSS FLATS11.050 MILLIMETERS MINIMUM MM
THREAD PITCH IN MILLIMETERS0.000
HARDNESS RATING43.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
COUNTERBORE DIAMETER7.000 MILLIMETERS MAXIMUM FIRST END MM
NUT HEIGHT2.200 MILLIMETERS MINIMUM MM
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLEDOUBLE HEXAGON
MATERIALSTEEL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 75678M610D?
75678M610D is a NUT,SELF-LOCKING,DOUBLE HEXAGON.
What is the NSN for 75678M610D?
75678M610D is cataloged in the U.S. Government catalog under NSN 5310-01-480-0995. 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.