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Technical Data Sheet
PartsTable / COMPONENT / 58055A
58055A ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 3140 OVERALL, head_style: DEE CHAMFER, head_height: 0.156 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.469 INCHES NOMINAL IN, thread_length: 0.625 INCHES MINIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-281-3785, 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
58055A
NSN: 5306-00-281-3785
FSC: 5306
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL COMP 3140 OVERALL
head_styleDEE CHAMFER
head_height0.156 INCHES NOMINAL IN
thread_class3A A
head_diameter0.469 INCHES NOMINAL IN
thread_length0.625 INCHES MINIMUM IN
fastener_length1.500 INCHES NOMINAL IN
hardness_rating23.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
nominal_thread_diameter0.312 INCHES IN
minimum_tensile_strength135000 POUNDS PER SQUARE INCH LBS
NSN5306-00-281-3785
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 58055A · 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
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 1.406 INCHES NOMINAL FIRST HOLE IN
•
FEATURES PROVIDED: FINISHED HEAD
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE TO FLAT: 0.156 INCHES NOMINAL IN
•
HEAD STYLE: DEE CHAMFER
•
HEAD HEIGHT: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.406 INCHES NOMINAL FIRST HOLE IN
FEATURES PROVIDEDFINISHED HEAD
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH1.500 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE TO FLAT0.156 INCHES NOMINAL IN
HEAD STYLEDEE CHAMFER
HEAD HEIGHT0.156 INCHES NOMINAL IN
HEAD DIAMETER0.469 INCHES NOMINAL IN
THREAD LENGTH0.625 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2APA05500177Interchangeable
interchangeable cross-reference
interchangeable
PX-550-177Interchangeable
interchangeable cross-reference
interchangeable
83605600Interchangeable
interchangeable cross-reference
interchangeable
5Interchangeable
interchangeable cross-reference
interchangeable
36056Interchangeable
interchangeable cross-reference
interchangeable
SAW-11357469Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 58055A?
58055A is a BOLT,MACHINE.
What parts can replace 58055A?
There are 11 known substitutes for 58055A: 2APA05500177, PX-550-177, 83605600 and 8 more. Substitute compatibility should be verified for your specific system.
Is 58055A still available?
58055A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026