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Technical Data Sheet
PartsTable / COMPONENT / X5008/12/149 ITEM 77
X5008/12/149 ITEM 77 ✓ 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 X5008/12/149 ITEM 77 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 5305-01-142-9403, 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
X5008/12/149 ITEM 77
NSN: 5305-01-142-9403
FSC: 5305
CAGE: K7018 — WELLMAN GROUP (GBR)
SPECIFICATIONS
Part NumberX5008/12/149 ITEM 77
NSN5305-01-142-9403
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: X5008/12/149 ITEM 77 · 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
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES DESIGNATOR: UNF
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD QUANTITY PER INCH24
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
FASTENER LENGTH1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
TA22Interchangeable
interchangeable cross-reference
interchangeable
AU8966Interchangeable
interchangeable cross-reference
interchangeable
14977Interchangeable
interchangeable cross-reference
interchangeable
27183Interchangeable
interchangeable cross-reference
interchangeable
970-41705 ITEM 35Interchangeable
interchangeable cross-reference
interchangeable
SS845-2007644 PIECE 14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X5008/12/149 ITEM 77?
X5008/12/149 ITEM 77 is a X5008/12/149 ITEM 77.
What parts can replace X5008/12/149 ITEM 77?
There are 15 known substitutes for X5008/12/149 ITEM 77: TA22, AU8966, 14977 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X5008/12/149 ITEM 77?
X5008/12/149 ITEM 77 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-142-9403. 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