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6405261 FIND 66 — 6405261 FIND 66

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6405261 FIND 66: 6405261 FIND 66.

The 6405261 FIND 66 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5315-01-452-5334, 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
6405261 FIND 66
NSN: 5315-01-452-5334
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number6405261 FIND 66
NSN5315-01-452-5334
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6405261 FIND 66 · 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
•
FIRST END TAPER LENGTH: 0.060 INCHES NOMINAL IN
•
FIRST END STYLE: CHAMFERED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.9980 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 4.250 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.060 INCHES NOMINAL IN
FIRST END STYLECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.9980 INCHES MINIMUM AND 0.9990 INCHES MAXIMUM IN
PIN OVERALL LENGTH4.250 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL COMP 316 OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
DF1706-350#66Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
752-6405261 FIND 66Reference document
Same NSN cross-reference
Reference document — Secondary reference
752-6405261-66Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 6405261 FIND 66?
6405261 FIND 66 is a 6405261 FIND 66.
What parts can replace 6405261 FIND 66?
There are 3 known substitutes for 6405261 FIND 66: DF1706-350#66, 752-6405261 FIND 66, 752-6405261-66. Substitute compatibility should be verified for your specific system.
What is the NSN for 6405261 FIND 66?
6405261 FIND 66 is cataloged in the U.S. Government catalog under NSN 5315-01-452-5334. This indicates validated use in U.S. government and defense supply chains.
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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.