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9666M12P02 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

9666M12P02: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.280 INCHES NOMINAL IN, outside_diameter: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN, peening_key_length: 0.301 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-110-2941, 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
9666M12P02
NSN: 5310-00-110-2941
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter0.280 INCHES NOMINAL IN
outside_diameter0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
peening_key_length0.301 INCHES NOMINAL IN
external_straight_key_width0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
external_straight_key_length0.141 INCHES NOMINAL IN
overall_distance_including_keys0.729 INCHES NOMINAL IN
material_document_and_classificationAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-110-2941
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9666M12P02 · 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: 0.141 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.729 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
•
PEENING KEY LENGTH: 0.301 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTERNAL STRAIGHT KEY LENGTH0.141 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS0.729 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
PEENING KEY LENGTH0.301 INCHES NOMINAL IN
MATERIAL THICKNESS0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.280 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 9666M12P02?
9666M12P02 is a WASHER,KEY.
What is the NSN for 9666M12P02?
9666M12P02 is cataloged in the U.S. Government catalog under NSN 5310-00-110-2941. 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.