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626653 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

626653: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.0666 INCHES MINIMUM AND 0.0668 INCHES MAXIMUM IN, hole_diameter: 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN, surface_finish: 40.0 MICROINCHES BOTTOM, hardness_rating: 35.0 ROCKWELL C MAXIMUM, overall_diameter: 0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-293-6928, 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
626653
NSN: 5310-00-293-6928
NIINs: 002936928, 011287049
FSC: 5310 — Nuts and Washers
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.0666 INCHES MINIMUM AND 0.0668 INCHES MAXIMUM IN
hole_diameter0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
surface_finish40.0 MICROINCHES BOTTOM
hardness_rating35.0 ROCKWELL C MAXIMUM
overall_diameter0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-293-6928
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 626653 · 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 FINISH: 40.0 MICROINCHES TOP
•
OVERALL DIAMETER: 0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
•
HARDNESS RATING: 35.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH40.0 MICROINCHES TOP
SURFACE FINISH40.0 MICROINCHES BOTTOM
OVERALL DIAMETER0.488 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 626653?
626653 is a NUT,PLAIN,ROUND.
What is the NSN for 626653?
626653 is cataloged in the U.S. Government catalog under NSN 5310-00-293-6928. 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.