PartsTable
Technical Data Sheet
Download PDF

6F5368 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6F5368: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include hole_diameter: 1.375 INCHES NOMINAL IN, outside_diameter: 2.125 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.125 INCHES NOMINAL IN, external_straight_key_width: 0.188 INCHES NOMINAL IN, overall_distance_including_keys: 2.567 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-352-8181, 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
6F5368
NSN: 5310-00-352-8181
FSC: 5310 — Nuts and Washers
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
hole_diameter1.375 INCHES NOMINAL IN
outside_diameter2.125 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.125 INCHES NOMINAL IN
external_key_quantity2
external_straight_key_width0.188 INCHES NOMINAL IN
overall_distance_including_keys2.567 INCHES NOMINAL IN
material_document_and_classificationMIL-B-16261 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-352-8181
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6F5368 · 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
•
OVERALL DISTANCE INCLUDING KEYS: 2.567 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16261 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.125 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.188 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 2
•
HOLE DIAMETER: 1.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS2.567 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16261 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.125 INCHES NOMINAL IN
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.188 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY2
HOLE DIAMETER1.375 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
No demilitarization required
Ready to buy 6F5368?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6F5368?
6F5368 is a WASHER,KEY.
What is the NSN for 6F5368?
6F5368 is cataloged in the U.S. Government catalog under NSN 5310-00-352-8181. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6F5368

✓ 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.