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Technical Data Sheet
PartsTable / COMPONENT / M305386
M305386 ✓ 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,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1015 OVERALL, head_style: HEXAGON, head_height: 0.469 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.000 INCHES NOMINAL IN, thread_series: UNF CONCENTRIC HOLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-741-1155, 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
M305386
NSN: 5306-00-741-1155
FSC: 5306
CAGE: 61465 — GARWOOD/FELLER INC GARWOOD WINCH DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 1015 OVERALL
head_styleHEXAGON
head_height0.469 INCHES NOMINAL IN
thread_class2A A
thread_length1.000 INCHES NOMINAL IN
thread_seriesUNF CONCENTRIC HOLE
fastener_length1.000 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE THREADED
thread_directionRIGHT-HAND
threads_per_inch27 CONCENTRIC HOLE
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.125 INCHES CONCENTRIC HOLE IN
NSN5306-00-741-1155
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M305386 · 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
•
WIDTH BETWEEN FLATS: 0.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CONCENTRIC HOLE THREADED
•
MATERIAL: STEEL COMP 1015 OVERALL
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 2A A
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.875 INCHES NOMINAL IN
STYLE DESIGNATORCONCENTRIC HOLE THREADED
MATERIALSTEEL COMP 1015 OVERALL
THREAD LENGTH1.000 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
THREAD CLASS2A A
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEHEXAGON
NOMINAL THREAD SIZE0.125 INCHES CONCENTRIC HOLE IN
THREAD SERIESUNF CONCENTRIC HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
9-16STAINLESSSTEELBALLGRADE1Interchangeable
interchangeable cross-reference
interchangeable
E200PC3110100621Interchangeable
interchangeable cross-reference
interchangeable
518324Interchangeable
interchangeable cross-reference
interchangeable
23343Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M305386?
M305386 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace M305386?
There are 4 known substitutes for M305386: 9-16STAINLESSSTEELBALLGRADE1, E200PC3110100621, 518324 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M305386?
M305386 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-741-1155. 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