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5AY66 — 5AY66

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5AY66: 5AY66.

The 5AY66 is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, head_style: FLAT REINFORCED, head_diameter: 0.281 INCHES NOMINAL IN, fastener_length: 2.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-586-6296, 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
5AY66
NSN: 5315-01-586-6296
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 4M876 — GRAINGER DIV OF W W GRAINGER INC (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
head_styleFLAT REINFORCED
head_diameter0.281 INCHES NOMINAL IN
fastener_length2.500 INCHES NOMINAL IN
NSN5315-01-586-6296
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5AY66 · 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
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
•
HEAD STYLE: FLAT REINFORCED
•
MATERIAL: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
HEAD DIAMETER: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.500 INCHES NOMINAL IN
HEAD STYLEFLAT REINFORCED
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
HEAD DIAMETER0.281 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
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 5AY66?
5AY66 is a 5AY66.
What is the NSN for 5AY66?
5AY66 is cataloged in the U.S. Government catalog under NSN 5315-01-586-6296. This indicates validated use in U.S. government and defense supply chains.
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