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Technical Data Sheet
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121301-21.8 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

121301-21.8: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5306-01-194-0438, 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
121301-21.8
NSN: 5306-01-194-0438
FSC: 5306 — Bolts
CAGE: 8FGX3 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORP DBA STEAM & AIR SOLUTIONS DIV CURTISS-WRIGHT STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
Part Number121301-21.8
NSN5306-01-194-0438
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 121301-21.8 · 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
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
LA91318Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121301-21.8?
121301-21.8 is a BOLT,MACHINE.
What parts can replace 121301-21.8?
There is 1 known substitute for 121301-21.8: LA91318. Substitute compatibility should be verified for your specific system.
What is the NSN for 121301-21.8?
121301-21.8 is cataloged in the U.S. Government catalog under NSN 5306-01-194-0438. This indicates validated use in U.S. government and defense supply chains.
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