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PartsTable / COMPONENT / 408290
408290 ✓ 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. Key specifications include material: STEEL COMP 8740 OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 0.062 INCHES NOMINAL IN, head_height: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-843-1516, 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
408290
NSN: 5306-00-843-1516
FSC: 5306
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length0.062 INCHES NOMINAL IN
head_height0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.047 INCHES NOMINAL IN
hole_quantity6
thread_length0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES THREADS
fastener_length0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
NSN5306-00-843-1516
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 408290 · 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
•
HEAD HEIGHT: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
SHANK UNTHREADED HOLE DIAMETER: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
•
FASTENER LENGTH: 0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON LONGITUDINAL HOLE
•
HOLE QUANTITY: 6
•
SURFACE FINISH: 63.0 MICROINCHES BEARING SURFACE OF HEAD
•
HOLE TYPE: DRILLED
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
SHANK UNTHREADED HOLE DIAMETER0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN
FASTENER LENGTH0.396 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEHEXAGON LONGITUDINAL HOLE
HOLE QUANTITY6
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
HOLE TYPEDRILLED
NOMINAL THREAD DIAMETER0.190 INCHES IN
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
48290Interchangeable
interchangeable cross-reference
interchangeable
108X187Interchangeable
interchangeable cross-reference
interchangeable
2018584Interchangeable
interchangeable cross-reference
interchangeable
152685Interchangeable
interchangeable cross-reference
interchangeable
97623Interchangeable
interchangeable cross-reference
interchangeable
48290-20629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 408290?
408290 is a BOLT,MACHINE.
What parts can replace 408290?
There are 10 known substitutes for 408290: 48290, 108X187, 2018584 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 408290?
408290 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-843-1516. 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