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Technical Data Sheet
PartsTable / COMPONENT / M-1331-2
M-1331-2 ✓ 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 M-1331-2 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 5305-01-221-7031, 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
M-1331-2
NSN: 5305-01-221-7031
FSC: 5305
CAGE: 98810 — AEROSONIC LLC (USA)
SPECIFICATIONS
Part NumberM-1331-2
NSN5305-01-221-7031
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M-1331-2 · 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 19
1340Interchangeable
interchangeable cross-reference
interchangeable
350-RTInterchangeable
interchangeable cross-reference
interchangeable
2012-T 12Interchangeable
interchangeable cross-reference
interchangeable
RB334Interchangeable
interchangeable cross-reference
interchangeable
612Interchangeable
interchangeable cross-reference
interchangeable
1172Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-1331-2?
M-1331-2 is a M-1331-2.
What parts can replace M-1331-2?
There are 19 known substitutes for M-1331-2: 1340, 350-RT, 2012-T 12 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M-1331-2?
M-1331-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-221-7031. 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