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GAA6214B — BOLT,EXTERNALLY RELIEVED BODY

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GAA6214B: BOLT,EXTERNALLY RELIEVED BODY.

The BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8640 OVERALL, thread_class: 3A A, thread_length: 0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, fastener_length: 2.940 INCHES NOMINAL IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL, special_features: HOLE DRILLED PERPENDICULAR TO AND THROUGH COTTER PIN HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-705-9685, 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
GAA6214B
NSN: 5306-00-705-9685
FSC: 5306 — Bolts
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
materialSTEEL COMP 8640 OVERALL
thread_class3A A
thread_length0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
fastener_length2.940 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
special_featuresHOLE DRILLED PERPENDICULAR TO AND THROUGH COTTER PIN HOLE
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
nominal_thread_diameter0.500 INCHES IN
first_diameter_from_head0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
third_diameter_from_head0.510 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN
thread_quantity_per_inch20
NSN5306-00-705-9685
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GAA6214B · 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
•
FOURTH DIAMETER FROM HEAD: 0.425 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.940 INCHES NOMINAL IN
•
THREAD LENGTH: 0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.140 INCHES NOMINAL FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.980 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FOURTH DIAMETER FROM HEAD0.425 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
FASTENER LENGTH2.940 INCHES NOMINAL IN
THREAD LENGTH0.660 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.140 INCHES NOMINAL FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.525 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.980 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.500 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.680 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GAA6214B?
GAA6214B is a BOLT,EXTERNALLY RELIEVED BODY.
What is the NSN for GAA6214B?
GAA6214B is cataloged in the U.S. Government catalog under NSN 5306-00-705-9685. 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.