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68A410656-2003 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68A410656-2003: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, hole_diameter: 0.695 INCHES NOMINAL0.695 INCHES NOMINAL IN, outside_diameter: 1.060 INCHES NOMINAL1.060 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.157 INCHES NOMINAL0.157 INCHES NOMINAL IN, internal_key_quantity: 22. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-251-8335, 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
68A410656-2003
NSN: 5310-01-251-8335
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
hole_diameter0.695 INCHES NOMINAL0.695 INCHES NOMINAL IN
outside_diameter1.060 INCHES NOMINAL1.060 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.157 INCHES NOMINAL0.157 INCHES NOMINAL IN
internal_key_quantity22
internal_straight_key_width0.013 INCHES NOMINAL0.013 INCHES NOMINAL IN
material_document_and_classificationAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key0.251 INCHES NOMINAL0.251 INCHES NOMINAL IN
NSN5310-01-251-8335
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68A410656-2003 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.013 INCHES NOMINAL0.013 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.251 INCHES NOMINAL0.251 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.060 INCHES NOMINAL1.060 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.157 INCHES NOMINAL0.157 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 630 OVERALL
•
INTERNAL KEY QUANTITY: 22
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.013 INCHES NOMINAL0.013 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.251 INCHES NOMINAL0.251 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.060 INCHES NOMINAL1.060 INCHES NOMINAL IN
MATERIAL THICKNESS0.157 INCHES NOMINAL0.157 INCHES NOMINAL IN
MATERIALSTEEL COMP 630 OVERALL
INTERNAL KEY QUANTITY22
HOLE DIAMETER0.695 INCHES NOMINAL0.695 INCHES NOMINAL 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A410656-2003?
68A410656-2003 is a WASHER,KEY.
What is the NSN for 68A410656-2003?
68A410656-2003 is cataloged in the U.S. Government catalog under NSN 5310-01-251-8335. 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.