PartsTable
Technical Data Sheet
Download PDF

3970537038 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3970537038: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: CHAMFER FLANGE, head_height: 0.32 INCHES MAXIMUM IN, thread_class: 2B, thread_length: 0.88 INCHES NOMINAL IN, fastener_length: 3.00 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-657-3714, 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
3970537038
NSN: 5306-01-657-3714
FSC: 5306 — Bolts
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleCHAMFER FLANGE
head_height0.32 INCHES MAXIMUM IN
thread_class2B
thread_length0.88 INCHES NOMINAL IN
fastener_length3.00 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC OVERALL
width_between_flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
end_item_identificationMRAP - M-ATV
nominal_thread_diameter0.31 INCHES IN
extended_washer_diameter0.68 INCHES MAXIMUM IN
NSN5306-01-657-3714
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3970537038 · 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: 0.32 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.00 INCHES NOMINAL IN
•
EXTENDED WASHER DIAMETER: 0.68 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.88 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.31 INCHES IN
•
HEAD STYLE: CHAMFER FLANGE
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.32 INCHES MAXIMUM IN
FASTENER LENGTH3.00 INCHES NOMINAL IN
EXTENDED WASHER DIAMETER0.68 INCHES MAXIMUM IN
THREAD LENGTH0.88 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.31 INCHES IN
HEAD STYLECHAMFER FLANGE
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
COLORBLACK OVERALL
SURFACE TREATMENTPHOSPHATE ZINC 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
3970537Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 3970537038?
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 3970537038?
3970537038 is a BOLT,MACHINE.
What parts can replace 3970537038?
There is 1 known substitute for 3970537038: 3970537. Substitute compatibility should be verified for your specific system.
What is the NSN for 3970537038?
3970537038 is cataloged in the U.S. Government catalog under NSN 5306-01-657-3714. 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 — 3970537038

✓ 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.