PartsTable
Technical Data Sheet
Download PDF

BACB30LE5K10 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACB30LE5K10: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, grip_length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, head_height: 0.309 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.593 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-370-5787, 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
BACB30LE5K10
NSN: 5306-01-370-5787
FSC: 5306 — Bolts
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
grip_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
head_height0.309 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
thread_class3A A
thread_length0.593 INCHES NOMINAL IN
fastener_length1.203 INCHES MINIMUM AND 1.233 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentALUMINUM THREADS
width_between_flats0.418 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN
nominal_thread_diameter0.3125 INCHES IN
extended_washer_diameter0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
NSN5306-01-370-5787
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30LE5K10 · 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: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.309 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.203 INCHES MINIMUM AND 1.233 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: BMS 10-85,TY I MFR REF SINGLE TREATMENT RESPONSE THREADS
•
EXTENDED WASHER DIAMETER: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.593 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.3125 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON EXTENDED WASHER
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
HEAD HEIGHT0.309 INCHES MINIMUM AND 0.329 INCHES MAXIMUM IN
FASTENER LENGTH1.203 INCHES MINIMUM AND 1.233 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBMS 10-85,TY I MFR REF SINGLE TREATMENT RESPONSE THREADS
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
THREAD LENGTH0.593 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.3125 INCHES IN
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM 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
BACB30LE5-10Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy BACB30LE5K10?
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 BACB30LE5K10?
BACB30LE5K10 is a BOLT,MACHINE.
What parts can replace BACB30LE5K10?
There is 1 known substitute for BACB30LE5K10: BACB30LE5-10. Substitute compatibility should be verified for your specific system.
What is the NSN for BACB30LE5K10?
BACB30LE5K10 is cataloged in the U.S. Government catalog under NSN 5306-01-370-5787. 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 — BACB30LE5K10

✓ 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.