PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 688J
688J ✓ 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 SCREW,THUMB 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 5305-00-359-8866, 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
688J
NSN: 5305-00-359-8866
FSC: 5305
CAGE: 77948 — SINGER CO THE (USA)
SPECIFICATIONS
Part Number688J
NSN5305-00-359-8866
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 688J · 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 13
688Interchangeable
interchangeable cross-reference
interchangeable
5676Interchangeable
interchangeable cross-reference
interchangeable
5057Interchangeable
interchangeable cross-reference
interchangeable
EXBRZPC22Interchangeable
interchangeable cross-reference
interchangeable
M62-23Interchangeable
interchangeable cross-reference
interchangeable
L15170Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 688J?
688J is a SCREW,THUMB.
What parts can replace 688J?
There are 13 known substitutes for 688J: 688, 5676, 5057 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 688J?
688J is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-359-8866. 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