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BACB30LE5K8 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACB30LE5K8: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: DOUBLE HEXAGON W/ HOLE, head_height: 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.593 INCHES MAXIMUM IN, screw_material: IRON ALLOY 660, fastener_length: 1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-482-1167, 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
BACB30LE5K8
NSN: 5305-01-482-1167
FSC: 5305 — Screws
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleDOUBLE HEXAGON W/ HOLE
head_height0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
thread_class3A A
thread_length0.593 INCHES MAXIMUM IN
screw_materialIRON ALLOY 660
fastener_length1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN
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
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
extended_washer_thickness0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NSN5305-01-482-1167
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30LE5K8 · 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: 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: AMS5737 ASSN STD 1ST MATERIAL RESPONSE
•
EXTENDED WASHER DIAMETER: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.593 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.3125 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON W/ HOLE
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
HEAD HEIGHT0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN
FASTENER LENGTH1.078 INCHES MINIMUM AND 1.108 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 ASSN STD 1ST MATERIAL RESPONSE
EXTENDED WASHER DIAMETER0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
THREAD LENGTH0.593 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.3125 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/ HOLE
WIDTH BETWEEN FLATS0.418 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN
SCREW MATERIALIRON ALLOY 660
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACB30LE5K8?
BACB30LE5K8 is a SCREW,MACHINE.
What is the NSN for BACB30LE5K8?
BACB30LE5K8 is cataloged in the U.S. Government catalog under NSN 5305-01-482-1167. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.