PartsTable
Technical Data Sheet
MILB857TYPE1STYLEB ✓ 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 STUD THREAD A, thread_length: 0.750 INCHES MAXIMUM NUT THREAD IN, overall_length: 2.875 INCHES NOMINAL IN, thread_direction: RIGHT-HAND NUT THREAD, nominal_thread_size: 0.312 INCHES NUT THREAD IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5307-00-206-4044, 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
MILB857TYPE1STYLEB
NSN: 5307-00-206-4044
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 STUD THREAD A
thread_length0.750 INCHES MAXIMUM NUT THREAD IN
overall_length2.875 INCHES NOMINAL IN
thread_directionRIGHT-HAND NUT THREAD
nominal_thread_size0.312 INCHES NUT THREAD IN
thread_quantity_per_inch18 STUD THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
nondefinitive_spec/std_data1 TYPE OR B STYLE
departure_from_cited_designatorAS MODIFIED BY NUT END THD LG;AS MODIFIED BY STUD END THD LG;AS MODIFIED BY MATERIAL;AS MODIFIED BY NUT END THD CLASS
material_document_and_classificationQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE
NSN5307-00-206-4044
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MILB857TYPE1STYLEB · 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 LENGTH: 0.375 INCHES MINIMUM STUD THREAD IN
THREAD QUANTITY PER INCH: 16 STUD THREAD
THREAD DIRECTION: RIGHT-HAND NUT THREAD
THREAD CLASS: 3A NUT THREAD A
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) STUD THREAD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.375 INCHES MINIMUM STUD THREAD IN
THREAD QUANTITY PER INCH16 STUD THREAD
THREAD DIRECTIONRIGHT-HAND NUT THREAD
THREAD QUANTITY PER INCH24 NUT THREAD
THREAD LENGTH1.062 INCHES MAXIMUM NUT THREAD IN
THREAD CLASS3A NUT THREAD A
THREAD CLASS3A STUD THREAD A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) STUD THREAD
MATERIALCOPPER ALLOY
NOMINAL THREAD SIZE0.375 INCHES STUD THREAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
21261Interchangeable
interchangeable cross-reference
interchangeable
110633Interchangeable
interchangeable cross-reference
interchangeable
695862Interchangeable
interchangeable cross-reference
interchangeable
37VInterchangeable
interchangeable cross-reference
interchangeable
1985Interchangeable
interchangeable cross-reference
interchangeable
D054Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILB857TYPE1STYLEB?
MILB857TYPE1STYLEB is a STUD,PLAIN.
What parts can replace MILB857TYPE1STYLEB?
There are 17 known substitutes for MILB857TYPE1STYLEB: 21261, 110633, 695862 and 14 more. Substitute compatibility should be verified for your specific system.
Is MILB857TYPE1STYLEB still available?
MILB857TYPE1STYLEB is currently cancelled.
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