PartsTable
Technical Data Sheet
Download PDF

BACB30US9K39 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACB30US9K39: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 3.615 INCHES MINIMUM AND 3.635 INCHES MAXIMUM IN, head_height: 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-338-3124, 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
BACB30US9K39
NSN: 5306-01-338-3124
FSC: 5306 — Bolts
CAGE: 06710 — VALLEY-TODECO, INC. DBA ARCONIC FASTENING SYSTEMS (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length3.615 INCHES MINIMUM AND 3.635 INCHES MAXIMUM IN
head_height0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN
thread_length0.910 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length4.520 INCHES MINIMUM AND 4.550 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentALUMINUM OVERALL
width_between_flats0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
NSN5306-01-338-3124
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30US9K39 · 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
EXTENDED WASHER THICKNESS: 0.123 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.520 INCHES MINIMUM AND 4.550 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: BMS10-85,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.929 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
EXTENDED WASHER THICKNESS0.123 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HEAD HEIGHT0.470 INCHES MINIMUM AND 0.490 INCHES MAXIMUM IN
FASTENER LENGTH4.520 INCHES MINIMUM AND 4.550 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBMS10-85,CAGEC 81205 MFR REF SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.929 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
THREAD LENGTH0.910 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
BACB30US9K29Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy BACB30US9K39?
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 BACB30US9K39?
BACB30US9K39 is a BOLT,SHEAR.
What parts can replace BACB30US9K39?
There is 1 known substitute for BACB30US9K39: BACB30US9K29. Substitute compatibility should be verified for your specific system.
What is the NSN for BACB30US9K39?
BACB30US9K39 is cataloged in the U.S. Government catalog under NSN 5306-01-338-3124. 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 — BACB30US9K39

✓ 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.