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505166 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

505166: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1117 OR STEEL COMP 1118 OVERALL, first_end_style: CHAMFERED, pin_overall_length: 2.688 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN, first_hole_diameter: 0.173 INCHES NOMINAL IN, pin_overall_diameter: 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, second_hole_diameter: 0.173 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-050-5166, 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
505166
NSN: 5315-00-050-5166
NIINs: 000505166, 014541889
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OR STEEL COMP 1118 OVERALL
first_end_styleCHAMFERED
pin_overall_length2.688 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
first_hole_diameter0.173 INCHES NOMINAL IN
pin_overall_diameter0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
second_hole_diameter0.173 INCHES NOMINAL IN
first_end_taper_angle15.0 DEGREES NOMINAL
first_end_taper_length0.156 INCHES NOMINAL IN
hole_arrangement_styleBOTH END DRILLED
end_item_identificationESU 10KVA INV, CAGE 09004
material_document_and_classificationQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-050-5166
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 505166 · 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: 0.156 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: BOTH END DRILLED
•
FIRST END STYLE: CHAMFERED
•
FIRST HOLE DIAMETER: 0.173 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
FIRST END TAPER ANGLE: 15.0 DEGREES NOMINAL
•
PIN OVERALL DIAMETER: 0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 2.688 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.156 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEBOTH END DRILLED
FIRST END STYLECHAMFERED
FIRST HOLE DIAMETER0.173 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
FIRST END TAPER ANGLE15.0 DEGREES NOMINAL
PIN OVERALL DIAMETER0.7470 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
PIN OVERALL LENGTH2.688 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SECOND HOLE DIAMETER0.173 INCHES NOMINAL IN
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 505166?
505166 is a CIRCUIT CARD ASSEMBLY.
What is the NSN for 505166?
505166 is cataloged in the U.S. Government catalog under NSN 5315-00-050-5166. 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.