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PartsTable / COMPONENT / MIL-S-1222,TY-I,GR-8 ZINC PLT
MIL-S-1222,TY-I,GR-8 ZINC PLT ✓ 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 MIL-S-1222,TY-I,GR-8 ZINC PLT is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-393-4080, 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
MIL-S-1222,TY-I,GR-8 ZINC PLT
NSN: 5307-00-393-4080
FSC: 5307
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-S-1222,TY-I,GR-8 ZINC PLT
NSN5307-00-393-4080
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-S-1222,TY-I,GR-8 ZINC PLT · 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
KEY FEATURES
•
THREAD QUANTITY PER INCH: 13 STUD THREAD
•
HARDNESS RATING: 25.0 ROCKWELL C NOMINAL
•
THREAD CLASS: 2A NUT THREAD A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
•
THREAD LENGTH: 1.500 INCHES NOMINAL STUD THREAD IN
•
THREAD DIRECTION: RIGHT-HAND NUT THREAD
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH13 STUD THREAD
HARDNESS RATING25.0 ROCKWELL C NOMINAL
THREAD CLASS2A NUT THREAD A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
THREAD LENGTH1.500 INCHES NOMINAL STUD THREAD IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
MATERIALSTEEL
THREAD DIRECTIONRIGHT-HAND STUD THREAD
NOMINAL THREAD SIZE0.500 INCHES STUD THREAD IN
THREAD LENGTH1.500 INCHES NOMINAL NUT THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
38323Interchangeable
interchangeable cross-reference
interchangeable
21086CInterchangeable
interchangeable cross-reference
interchangeable
19263BInterchangeable
interchangeable cross-reference
interchangeable
SB155GPNInterchangeable
interchangeable cross-reference
interchangeable
38404Interchangeable
interchangeable cross-reference
interchangeable
4X186Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-S-1222,TY-I,GR-8 ZINC PLT?
MIL-S-1222,TY-I,GR-8 ZINC PLT is a MIL-S-1222,TY-I,GR-8 ZINC PLT.
What parts can replace MIL-S-1222,TY-I,GR-8 ZINC PLT?
There are 19 known substitutes for MIL-S-1222,TY-I,GR-8 ZINC PLT: 38323, 21086C, 19263B and 16 more. Substitute compatibility should be verified for your specific system.
Is MIL-S-1222,TY-I,GR-8 ZINC PLT still available?
MIL-S-1222,TY-I,GR-8 ZINC PLT is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026