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7766964 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7766964: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1009 OR STEEL COMP 1022 OVERALL, hole_diameter: 2.192 INCHES MINIMUM AND 2.197 INCHES MAXIMUM IN, outside_diameter: 2.906 INCHES MINIMUM AND 2.969 INCHES MAXIMUM IN, material_thickness: 0.074 INCHES NOMINAL IN, external_key_quantity: 12, external_straight_key_length: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-776-6964, 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
7766964
NSN: 5310-00-776-6964
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1009 OR STEEL COMP 1022 OVERALL
hole_diameter2.192 INCHES MINIMUM AND 2.197 INCHES MAXIMUM IN
outside_diameter2.906 INCHES MINIMUM AND 2.969 INCHES MAXIMUM IN
material_thickness0.074 INCHES NOMINAL IN
external_key_quantity12
external_straight_key_length0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
overall_distance_including_keys3.469 INCHES MINIMUM AND 3.531 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-640,CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-776-6964
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7766964 · 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: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 3.469 INCHES MINIMUM AND 3.531 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-640,CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 2.906 INCHES MINIMUM AND 2.969 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.074 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 12
•
MATERIAL: STEEL COMP 1009 OR STEEL COMP 1022 OVERALL
•
HOLE DIAMETER: 2.192 INCHES MINIMUM AND 2.197 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EXTERNAL STRAIGHT KEY LENGTH0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS3.469 INCHES MINIMUM AND 3.531 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-640,CANC FED SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER2.906 INCHES MINIMUM AND 2.969 INCHES MAXIMUM IN
MATERIAL THICKNESS0.074 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY12
MATERIALSTEEL COMP 1009 OR STEEL COMP 1022 OVERALL
HOLE DIAMETER2.192 INCHES MINIMUM AND 2.197 INCHES MAXIMUM 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
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FREQUENTLY ASKED QUESTIONS
What is 7766964?
7766964 is a WASHER,KEY.
What is the NSN for 7766964?
7766964 is cataloged in the U.S. Government catalog under NSN 5310-00-776-6964. 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.