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Technical Data Sheet
PartsTable / COMPONENT / 5EX166
5EX166 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The STUD,PLAIN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-216-8285, 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
5EX166
NSN: 5307-01-216-8285
FSC: 5307
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
Part Number5EX166
NSN5307-01-216-8285
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5EX166 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
57408Interchangeable
interchangeable cross-reference
interchangeable
607-5-64Interchangeable
interchangeable cross-reference
interchangeable
74004Interchangeable
interchangeable cross-reference
interchangeable
51212Interchangeable
interchangeable cross-reference
interchangeable
4906175-7Interchangeable
interchangeable cross-reference
interchangeable
9975572Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5EX166?
5EX166 is a STUD,PLAIN.
What parts can replace 5EX166?
There are 12 known substitutes for 5EX166: 57408, 607-5-64, 74004 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5EX166?
5EX166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-01-216-8285. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026