MILB857TYPE1STYLEB — STUD,PLAIN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MILB857TYPE1STYLEB: STUD,PLAIN.

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 U.S.

Government catalog 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
NIINs: 002064044, 002469674, 002469675, 002469676, 002469677, 002469678, 002469679, 002469680, 002469683, 002469684, 002487530, 002487531, 002487844, 002487845, 002487846, 002487848, 002487849, 002487850, 002487851, 002487852, 002487853, 002487856, 002487857, 002487858, 002487860, 002487861, 002487862, 002487863, 002570766, 005501558
FSC: 5307 — Studs
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

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
thread_quantity_per_inch	18 STUD THREAD
thread_series_designator	UNIFIED NATIONAL COARSE (UNC) NUT THREAD
nondefinitive_spec/std_data	1 TYPE OR B STYLE
departure_from_cited_designator	AS 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_classification	QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE
NSN	5307-00-206-4044

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD LENGTH: 0.375 INCHES MINIMUM STUD THREAD IN

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

•

NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN

•

THREAD CLASS: 3A NUT THREAD A

TECHNICAL CHARACTERISTICS

THREAD LENGTH	0.375 INCHES MINIMUM STUD THREAD IN
THREAD LENGTH	1.062 INCHES MAXIMUM NUT THREAD IN
OVERALL LENGTH	1.750 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE	0.375 INCHES NUT THREAD IN
THREAD CLASS	3A NUT THREAD A
THREAD CLASS	3A STUD THREAD A
THREAD QUANTITY PER INCH	24 NUT THREAD

SUBSTITUTES & CROSS-REFERENCES 2

21261Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

8501460Reference document

Same NSN cross-reference

Reference document — Replaced / superseded reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MILB857TYPE1STYLEB?

MILB857TYPE1STYLEB is a STUD,PLAIN.

What parts can replace MILB857TYPE1STYLEB?

There are 2 known substitutes for MILB857TYPE1STYLEB: 21261, 8501460. Substitute compatibility should be verified for your specific system.

What is the NSN for MILB857TYPE1STYLEB?

MILB857TYPE1STYLEB is cataloged in the U.S. Government catalog under NSN 5307-00-206-4044. This indicates validated use in U.S. government and defense supply chains.

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