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Technical Data Sheet
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590B2 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

590B2: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1035 OVERALL, head_style: HEXAGON, head_height: 0.219 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.562 INCHES MINIMUM IN, fastener_length: 1.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-174-4202, 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
590B2
NSN: 5306-00-174-4202
FSC: 5306 — Bolts
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OVERALL
head_styleHEXAGON
head_height0.219 INCHES NOMINAL IN
thread_class3A A
thread_length0.562 INCHES MINIMUM IN
fastener_length1.188 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedUNFINISHED HEAD
width_between_flats0.562 INCHES NOMINAL IN
nominal_thread_diameter0.438 INCHES IN
thread_quantity_per_inch14
thread_series_designatorUNF
NSN5306-00-174-4202
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 590B2 · 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: 0.219 INCHES NOMINAL IN
•
FASTENER LENGTH: 1.188 INCHES NOMINAL IN
•
THREAD LENGTH: 0.562 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FEATURES PROVIDED: UNFINISHED HEAD
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.219 INCHES NOMINAL IN
FASTENER LENGTH1.188 INCHES NOMINAL IN
THREAD LENGTH0.562 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
FEATURES PROVIDEDUNFINISHED HEAD
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.562 INCHES NOMINAL IN
THREAD CLASS3A A
SUBSTITUTES & CROSS-REFERENCES 7
100114R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
301518R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
382351Reference document
Same NSN cross-reference
Reference document — Secondary reference
5305010385886Reference document
Same NSN cross-reference
Reference document — Informative reference only
515-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
22497MReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 590B2?
590B2 is a BOLT,MACHINE.
What parts can replace 590B2?
There are 7 known substitutes for 590B2: 100114R1, 301518R1, 382351 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 590B2?
590B2 is cataloged in the U.S. Government catalog under NSN 5306-00-174-4202. This indicates validated use in U.S. government and defense supply chains.
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