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PartsTable / COMPONENT / A187058
A187058 ✓ 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 1335 OR STEEL COMP 1035 OVERALL, head_style: HEXAGON, grip_length: 0.438 INCHES NOMINAL IN, head_height: 0.328 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.688 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-518-7058, 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
A187058
NSN: 5306-00-518-7058
FSC: 5306
CAGE: 00000
SPECIFICATIONS
materialSTEEL COMP 1335 OR STEEL COMP 1035 OVERALL
head_styleHEXAGON
grip_length0.438 INCHES NOMINAL IN
head_height0.328 INCHES NOMINAL IN
thread_class2A A
thread_length0.688 INCHES MAXIMUM IN
fastener_length1.125 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentPHOSPHATE OVERALL
width_between_flats0.625 INCHES NOMINAL IN
NSN5306-00-518-7058
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A187058 · 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
•
THREAD QUANTITY PER INCH: 20
•
THREAD CLASS: 2A A
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-633 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1335 OR STEEL COMP 1035 OVERALL
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
THREAD CLASS2A A
NOMINAL THREAD DIAMETER0.438 INCHES IN
THREAD DIRECTIONRIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-633 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1335 OR STEEL COMP 1035 OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
FASTENER LENGTH1.125 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
36-153Interchangeable
px2-300d 2TB
interchangeable
110440Interchangeable
interchangeable cross-reference
interchangeable
5306-518-7058Interchangeable
Same NIIN cross-reference
interchangeable
5187058Interchangeable
Same NIIN cross-reference
interchangeable
5306005187058Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A187058?
A187058 is a BOLT,MACHINE.
What parts can replace A187058?
There are 5 known substitutes for A187058: 36-153, 110440, 5306-518-7058 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A187058?
A187058 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-518-7058. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026