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CP026C08 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

CP026C08: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, hole_diameter: 0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN, outside_diameter: 1.265 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, peening_key_length: 1.687 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-336-2261, 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
CP026C08
NSN: 5310-01-336-2261
FSC: 5310 — Nuts and Washers
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
hole_diameter0.765 INCHES MINIMUM AND 0.797 INCHES MAXIMUM IN
outside_diameter1.265 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
peening_key_length1.687 INCHES NOMINAL IN
external_key_quantity1
external_straight_key_width0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
external_straight_key_length0.281 INCHES NOMINAL IN
overall_distance_including_keys2.890 INCHES NOMINAL IN
material_document_and_classificationQQ-N-286,CLASS B,GRADE 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-336-2261
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CP026C08 · 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
•
EXTERNAL STRAIGHT KEY LENGTH: 0.281 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 2.890 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-286,CLASS B,GRADE 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.265 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
•
PEENING KEY LENGTH: 1.687 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTERNAL STRAIGHT KEY LENGTH0.281 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS2.890 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CLASS B,GRADE 500 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.265 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
PEENING KEY LENGTH1.687 INCHES NOMINAL IN
MATERIAL THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY1
MATERIALNICKEL ALLOY 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 CP026C08?
CP026C08 is a WASHER,KEY.
What is the NSN for CP026C08?
CP026C08 is cataloged in the U.S. Government catalog under NSN 5310-01-336-2261. 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.