MILB857TYPE2 — BOLT,MACHINE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

MILB857TYPE2: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 606, thread_class: 3A NUT THREAD A, thread_length: 0.562 INCHES NOMINAL NUT THREAD IN, overall_length: 1.125 INCHES NOMINAL IN, thread_direction: RIGHT-HAND NUT THREAD, nominal_thread_size: 0.250 INCHES NUT THREAD IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-174-9761, 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

MILB857TYPE2

NSN: 5306-00-174-9761
NIINs: 001749761, 002270928, 002270929, 002270930, 002696203, 002722060, 002722067, 002722068, 002724495, 002725150, 002732033, 002736097, 002741591, 002742492, 006377237
FSC: 5306 — Bolts
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	COPPER ALLOY 606
thread_class	3A NUT THREAD A
thread_length	0.562 INCHES NOMINAL NUT THREAD IN
overall_length	1.125 INCHES NOMINAL IN
thread_direction	RIGHT-HAND NUT THREAD
nominal_thread_size	0.250 INCHES NUT THREAD IN
thread_quantity_per_inch	20 STUD THREAD
thread_series_designator	UNIFIED NATIONAL COARSE (UNC) STUD THREAD
material_document_and_classification	QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE
NSN	5306-00-174-9761

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.750 INCHES NOMINAL IN

•

THREAD LENGTH: 1.000 INCHES MINIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.375 INCHES IN

•

FEATURES PROVIDED: FINISHED HEAD

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
FASTENER LENGTH	1.750 INCHES NOMINAL IN
THREAD LENGTH	1.000 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES IN
FEATURES PROVIDED	FINISHED HEAD
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA	2 TYPE

SUBSTITUTES & CROSS-REFERENCES 2

M1222RN6C228NANNSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MIL-DTL-1222Reference document

Same NSN cross-reference

Reference document — Identification reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MILB857TYPE2?

MILB857TYPE2 is a BOLT,MACHINE.

What parts can replace MILB857TYPE2?

There are 2 known substitutes for MILB857TYPE2: M1222RN6C228NANN, MIL-DTL-1222. Substitute compatibility should be verified for your specific system.

What is the NSN for MILB857TYPE2?

MILB857TYPE2 is cataloged in the U.S. Government catalog under NSN 5306-00-174-9761. This indicates validated use in U.S. government and defense supply chains.

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