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6748568 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6748568: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 2.938 INCHES MINIMUM AND 2.945 INCHES MAXIMUM IN, hardness_rating: 55.0 ROCKWELL B MAXIMUM, outside_diameter: 3.562 INCHES NOMINAL IN, style_designator: KEY, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-209-3740, 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
6748568
NSN: 5310-00-209-3740
FSC: 5310 — Nuts and Washers
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter2.938 INCHES MINIMUM AND 2.945 INCHES MAXIMUM IN
hardness_rating55.0 ROCKWELL B MAXIMUM
outside_diameter3.562 INCHES NOMINAL IN
style_designatorKEY
surface_treatmentCADMIUM OVERALL
material_thickness0.068 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
external_key_quantity19
external_prebent_key_width0.325 INCHES NOMINAL IN
internal_prebent_key_width0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
internal_prebent_key_length0.188 INCHES NOMINAL IN
overall_distance_including_keys4.016 INCHES NOMINAL IN
NSN5310-00-209-3740
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6748568 · 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 PREBENT KEY WIDTH: 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 4.016 INCHES NOMINAL IN
•
HARDNESS RATING: 55.0 ROCKWELL B MAXIMUM
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: EMS 61100 FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.562 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.068 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 19
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS4.016 INCHES NOMINAL IN
HARDNESS RATING55.0 ROCKWELL B MAXIMUM
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONEMS 61100 FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER3.562 INCHES NOMINAL IN
MATERIAL THICKNESS0.068 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY19
INTERNAL PREBENT KEY LENGTH0.188 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6748568?
6748568 is a WASHER,KEY.
What is the NSN for 6748568?
6748568 is cataloged in the U.S. Government catalog under NSN 5310-00-209-3740. This indicates validated use in U.S. government and defense supply chains.
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