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AN121666 — PIN,SPECIAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AN121666: PIN,SPECIAL.

The PIN,SPECIAL is a the manufacturer industrial component. Key specifications include height: 0.047 INCHES NOMINAL IN, diameter: 0.185 INCHES NOMINAL IN, material: STEEL COMP 8740 OVERALL, head_style: FLAT, chamfer_length: 0.047 INCHES NOMINAL IN, pin_head_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-306-4476, 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
AN121666
NSN: 5315-01-306-4476
NIINs: 013064476, 013967645
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
height0.047 INCHES NOMINAL IN
diameter0.185 INCHES NOMINAL IN
materialSTEEL COMP 8740 OVERALL
head_styleFLAT
chamfer_length0.047 INCHES NOMINAL IN
pin_head_diameter0.312 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
under_head_length1.190 INCHES NOMINAL IN
first_hole_diameter0.068 INCHES NOMINAL IN
hole_arrangement_styleONE END DRILLED
end_item_identificationBEECH AIRCRAFT
distance_from_centerline_of_hole_to_end_of_pin0.091 INCHES NOMINAL IN
NSN5315-01-306-4476
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN121666 · 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONBEECH AIRCRAFT
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 AN121666?
AN121666 is a PIN,SPECIAL.
What is the NSN for AN121666?
AN121666 is cataloged in the U.S. Government catalog under NSN 5315-01-306-4476. 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.