PartsTable
Technical Data Sheet
MILB857TYPE1STYLEA ✓ 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 STUD,PLAIN is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 464, thread_class: 3A NUT THREAD A, thread_length: 0.562 INCHES MINIMUM NUT THREAD IN, overall_length: 1.125 INCHES NOMINAL IN, thread_direction: RIGHT-HAND STUD THREAD, nominal_thread_size: 0.312 INCHES NUT THREAD 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 5307-00-206-5488, 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
MILB857TYPE1STYLEA
NSN: 5307-00-206-5488
FSC: 5307
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY 464
thread_class3A NUT THREAD A
thread_length0.562 INCHES MINIMUM NUT THREAD IN
overall_length1.125 INCHES NOMINAL IN
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_quantity_per_inch24 NUT THREAD
thread_series_designatorUNF NUT THREAD
nondefinitive_spec/std_data1 TYPE AND A STYLE
specification/standard_data81349-MIL-DTL-1222 GOVERNMENT SPECIFICATION
departure_from_cited_documentAS MODIFIED BY MATERIAL
departure_from_cited_designatorAS MODIFIED BY NUT END THREAD LENGTH AND BY STUD END THREAD THREAD LENGTH
NSN5307-00-206-5488
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MILB857TYPE1STYLEA · 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
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY NUT END AND STUD END THREAD LENGTH
THREAD CLASS: 5A STUD THREAD A
NOMINAL THREAD SIZE: 0.375 INCHES NUT THREAD IN
THREAD LENGTH: 0.500 INCHES MINIMUM STUD THREAD IN
THREAD DIRECTION: RIGHT-HAND NUT THREAD
MATERIAL: COPPER ALLOY 606
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY NUT END AND STUD END THREAD LENGTH
OVERALL LENGTH1.438 INCHES NOMINAL IN
THREAD CLASS5A STUD THREAD A
NOMINAL THREAD SIZE0.375 INCHES NUT THREAD IN
THREAD LENGTH0.500 INCHES MINIMUM STUD THREAD IN
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD CLASS3A NUT THREAD A
MATERIALCOPPER ALLOY 606
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
THREAD SERIES DESIGNATORUNF NUT THREAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILB857TYPE1STYLEA?
MILB857TYPE1STYLEA is a STUD,PLAIN.
What is the NSN for MILB857TYPE1STYLEA?
MILB857TYPE1STYLEA is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-206-5488. This indicates validated use in U.S. government and defense supply chains.
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