881B-3MB-0562 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

881B-3MB-0562: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, thread_class: 3A NUT THREAD A, thread_length: 0.437 INCHES MINIMUM NUT THREAD IN, overall_length: 0.874 INCHES NOMINAL IN, hardness_rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, locking_feature: RING, LOCK KEYED. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-949-8215, 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

881B-3MB-0562

NSN: 5307-00-949-8215
FSC: 5307 — Studs
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)

SPECIFICATIONS

material	STEEL COMP 4130
thread_class	3A NUT THREAD A
thread_length	0.437 INCHES MINIMUM NUT THREAD IN
overall_length	0.874 INCHES NOMINAL IN
hardness_rating	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
locking_feature	RING, LOCK KEYED
shoulder_length	0.037 INCHES NOMINAL IN
style_designator	LOCKED IN
thread_direction	RIGHT-HAND NUT THREAD
shoulder_diameter	0.185 INCHES NOMINAL IN
surface_treatment	CADMIUM OVERALL
nominal_thread_size	0.250 INCHES STUD THREAD IN
NSN	5307-00-949-8215

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.437 INCHES MINIMUM NUT THREAD IN

•

HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.437 INCHES MINIMUM NUT THREAD IN
THREAD LENGTH	0.275 INCHES MINIMUM STUD THREAD IN
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	0.874 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.250 INCHES STUD THREAD IN

OTHER ITEMS IN FSC 5307 — Studs

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5307-00-000-6436 5307-00-001-1578 5307-00-001-1761 5307-00-001-2366 5307-00-001-4491 5307-00-001-4624 5307-00-001-4625

SUBSTITUTES & CROSS-REFERENCES 2

S234-3-59AReference document

Same NSN cross-reference

Reference document — Secondary reference

877B-3MB-34Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 881B-3MB-0562?

881B-3MB-0562 is a STUD,LOCKED IN.

What parts can replace 881B-3MB-0562?

There are 2 known substitutes for 881B-3MB-0562: S234-3-59A, 877B-3MB-34. Substitute compatibility should be verified for your specific system.

What is the NSN for 881B-3MB-0562?

881B-3MB-0562 is cataloged in the U.S. Government catalog under NSN 5307-00-949-8215. This indicates validated use in U.S. government and defense supply chains.

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