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Technical Data Sheet
PartsTable / COMPONENT / BACB30NE4-6
BACB30NE4-6 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 8740 OVERALL, head_style: DISHED HEXAGON, grip_length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, head_height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-01-106-5220, 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
BACB30NE4-6
NSN: 5306-01-106-5220
FSC: 5306
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OR STEEL COMP 8740 OVERALL
head_styleDISHED HEXAGON
grip_length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
head_height0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length0.785 INCHES MINIMUM AND 0.815 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
NSN5306-01-106-5220
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30NE4-6 · 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
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP E4340 OR STEEL COMP 8740 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.250 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP E4340 OR STEEL COMP 8740 OVERALL
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
BACB30NF4-6Upgraded Successor
successor cross-reference
successor
10-1157-2-1Interchangeable
interchangeable cross-reference
interchangeable
10-1157-2Interchangeable
interchangeable cross-reference
interchangeable
311-001Interchangeable
interchangeable cross-reference
interchangeable
5306PL1497719Interchangeable
Same NIIN cross-reference
interchangeable
NAS6604-6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACB30NE4-6?
BACB30NE4-6 is a BOLT,SHEAR.
What parts can replace BACB30NE4-6?
There are 7 known substitutes for BACB30NE4-6: BACB30NF4-6, 10-1157-2-1, 10-1157-2 and 4 more. Substitute compatibility should be verified for your specific system.
Is BACB30NE4-6 still available?
BACB30NE4-6 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026