PartsTable
Technical Data Sheet
Download PDF

US37 — BOLT,U

✓ Government record, cited
Larsen · BOLT SCREW
PRODUCT OVERVIEW

US37: BOLT,U.

A massive pirate battle has erupted across the seven seas! Two ships navigate side by side as the pirates from both boats prepare to fight and steal each other’s treasures. Too late, one Captain realizes his mistake as he swings from a rope to the other ship.

Large mean sharks have jumped out of the water to join the fight! The Captain’s parrot flies away in fear as the cannonballs smack into one side of a ship loudly. Who do you think will win this battle?

Pieces are shaped like a pirate ship, a shark and a parrot. This part is cataloged in the U.S. Government catalog under NSN 5306-01-675-7142, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
US37
NSN: 5306-01-675-7142
FSC: 5306 — Bolts
CAGE: 53TM1 — DALE COMPANY, INC, THE (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thread_length3.625 INCHES NOMINAL IN
style_designatorROUND BEND
thread_directionRIGHT-HAND
nominal_thread_diameter0.500 INCHES IN
inside_distance_between_shanks2.4375 INCHES NOMINAL IN
distance_from_inside_center_of_bend_to_bolt_end3.625 INCHES NOMINAL IN
NSN5306-01-675-7142
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: US37 · Larsen ⚠ 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
•
INSIDE DISTANCE BETWEEN SHANKS: 2.4375 INCHES NOMINAL IN
•
THREAD LENGTH: 3.625 INCHES NOMINAL IN
•
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END: 3.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND BEND
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL COMP 304 OVERALL
TECHNICAL CHARACTERISTICS
INSIDE DISTANCE BETWEEN SHANKS2.4375 INCHES NOMINAL IN
THREAD LENGTH3.625 INCHES NOMINAL IN
DISTANCE FROM INSIDE CENTER OF BEND TO BOLT END3.625 INCHES NOMINAL IN
STYLE DESIGNATORROUND BEND
NOMINAL THREAD DIAMETER0.500 INCHES IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 304 OVERALL
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
645-8464028ITEM5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy US37?
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 US37?
US37 is a BOLT,U manufactured by Larsen.
What parts can replace US37?
There is 1 known substitute for US37: 645-8464028ITEM5. Substitute compatibility should be verified for your specific system.
What is the NSN for US37?
US37 is cataloged in the U.S. Government catalog under NSN 5306-01-675-7142. 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 — US37

✓ 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.