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Technical Data Sheet
PartsTable / COMPONENT / 2990002972849
2990002972849 ✓ 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, head_style: HEXAGON, head_height: 0.160 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.500 INCHES MINIMUM IN, surface_finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-147-1949, 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
2990002972849
NSN: 5306-00-147-1949
FSC: 5306
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
head_styleHEXAGON
head_height0.160 INCHES NOMINAL IN
thread_class3A A
thread_length0.500 INCHES MINIMUM IN
surface_finish63.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length2.080 INCHES MINIMUM IN
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch28
NSN5306-00-147-1949
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2990002972849 · 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
•
THREAD SERIES DESIGNATOR: UNF
•
SURFACE FINISH: 63.0 MICROINCHES GRIP
•
THREAD CLASS: 3A A
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.078 INCHES NOMINAL FIRST HOLE IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF
SURFACE FINISH63.0 MICROINCHES GRIP
THREAD CLASS3A A
THREAD DIRECTIONRIGHT-HAND
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SHANK UNTHREADED HOLE DIAMETER0.078 INCHES NOMINAL FIRST HOLE IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FASTENER LENGTH2.080 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
52033Interchangeable
interchangeable cross-reference
interchangeable
52819Interchangeable
interchangeable cross-reference
interchangeable
72874Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2990002972849?
2990002972849 is a BOLT,MACHINE.
What parts can replace 2990002972849?
There are 3 known substitutes for 2990002972849: 52033, 52819, 72874. Substitute compatibility should be verified for your specific system.
Is 2990002972849 still available?
2990002972849 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026