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Technical Data Sheet
PartsTable / COMPONENT / 3993-8
3993-8 ✓ Verified by PartsTable
Clementoni · 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 TOOL KIT,SCREW THREAD INSERT is a Clementoni industrial component. Key specifications include end_item_identification: 3930-01-384-5310. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-353-0496, 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
3993-8
NSN: 5307-00-353-0496
FSC: 5307
CAGE: 09386 — ALLIEDSIGNAL INC ALLIEDSIGNAL BRAKING SYSTEMS-WHEEL END PRODUCTS (USA)
SPECIFICATIONS
end_item_identification3930-01-384-5310
NSN5307-00-353-0496
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3993-8 · Clementoni ⚠ 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
KEY FEATURES
•
THREAD SERIES DESIGNATOR: UNF STUD THREAD
•
THREAD LENGTH: 1.219 INCHES MINIMUM NUT THREAD IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
THREAD DIRECTION: LEFT-HAND STUD THREAD
•
HARDNESS RATING: 18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD SIZE: 0.750 INCHES STUD THREAD IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF STUD THREAD
THREAD LENGTH1.219 INCHES MINIMUM NUT THREAD IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD DIRECTIONLEFT-HAND STUD THREAD
HARDNESS RATING18.0 ROCKWELL C MINIMUM AND 28.0 ROCKWELL C MAXIMUM
NOMINAL THREAD SIZE0.750 INCHES STUD THREAD IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD CLASS2A NUT THREAD A
THREAD LENGTH0.938 INCHES MAXIMUM STUD THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
AS59158 TY1CL3Interchangeable
interchangeable cross-reference
interchangeable
3993-8Interchangeable
interchangeable cross-reference
interchangeable
AS59158Interchangeable
interchangeable cross-reference
interchangeable
21733Interchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
565199Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3993-8?
3993-8 is a TOOL KIT,SCREW THREAD INSERT manufactured by Clementoni.
What parts can replace 3993-8?
There are 6 known substitutes for 3993-8: AS59158 TY1CL3, 3993-8, AS59158 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3993-8?
3993-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-353-0496. 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