PartsTable
Technical Data Sheet
Download PDF

6K3772 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

6K3772: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.480 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 2.000 INCHES NOMINAL IN, fastener_length: 2.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-040-2033, 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
6K3772
NSN: 5306-01-040-2033
FSC: 5306 — Bolts
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.480 INCHES NOMINAL IN
thread_class2A A
thread_length2.000 INCHES NOMINAL IN
fastener_length2.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
width_between_flats0.485 INCHES NOMINAL IN
nominal_thread_diameter0.438 INCHES IN
extended_washer_diameter0.650 INCHES NOMINAL IN
thread_quantity_per_inch14
NSN5306-01-040-2033
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 6K3772 · 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
•
EXTENDED WASHER THICKNESS: 0.168 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.480 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.650 INCHES NOMINAL IN
•
THREAD LENGTH: 2.000 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
FEATURES PROVIDED: FINISHED HEAD
•
HEAD STYLE: DOUBLE HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.168 INCHES NOMINAL IN
HEAD HEIGHT0.480 INCHES NOMINAL IN
FASTENER LENGTH2.250 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.650 INCHES NOMINAL IN
THREAD LENGTH2.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.438 INCHES IN
FEATURES PROVIDEDFINISHED HEAD
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.485 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
9007500-4430Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 6K3772?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6K3772?
6K3772 is a BOLT,MACHINE.
What parts can replace 6K3772?
There is 1 known substitute for 6K3772: 9007500-4430. Substitute compatibility should be verified for your specific system.
What is the NSN for 6K3772?
6K3772 is cataloged in the U.S. Government catalog under NSN 5306-01-040-2033. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6K3772

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.