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Technical Data Sheet
PartsTable / COMPONENT / ST1222-18
ST1222-18 ✓ 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 BOLT,MACHINE 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 5306-01-673-2178, 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
ST1222-18
NSN: 5306-01-673-2178
FSC: 5306
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
Part NumberST1222-18
NSN5306-01-673-2178
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST1222-18 · 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
ST122-2Upgraded Successor
successor cross-reference
successor
12-122Interchangeable
interchangeable cross-reference
interchangeable
B107.1 TY1CL1Interchangeable
interchangeable cross-reference
interchangeable
B107.1 CL1STAInterchangeable
interchangeable cross-reference
interchangeable
704AS2894Interchangeable
interchangeable cross-reference
interchangeable
2N6259Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST1222-18?
ST1222-18 is a BOLT,MACHINE.
What parts can replace ST1222-18?
There are 13 known substitutes for ST1222-18: ST122-2, 12-122, B107.1 TY1CL1 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST1222-18?
ST1222-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-673-2178. 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