SFJ81-6SM6A — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

SFJ81-6SM6A: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include thread_class: 3A NUT THREAD A, thread_length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD IN, overall_length: 0.725 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES NUT THD, locking_feature: HEAD SERRATIONS, style_designator: LOCKED IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-007-0548, 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

SFJ81-6SM6A

NSN: 5307-01-007-0548
FSC: 5307 — Studs
CAGE: 5R793 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

thread_class	3A NUT THREAD A
thread_length	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD IN
overall_length	0.725 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES NUT THD
locking_feature	HEAD SERRATIONS
style_designator	LOCKED IN
thread_direction	RIGHT-HAND NUT THREAD
thread_pitch_diameters	+0.1639 TO 0.1654 INCHES STUD THREAD IN
distance_from_serrated_portion_to_nut_end	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
distance_from_serrated_portion_to_stud_end	0.365 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
distance_from_serrated_portion_to_end_of_stud_thread	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
NSN	5307-01-007-0548

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES NUT THD

•

DISTANCE FROM SERRATED PORTION TO NUT END: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD IN

•

STYLE DESIGNATOR: LOCKED IN

•

THREAD PITCH DIAMETERS: +0.1639 TO 0.1654 INCHES STUD THREAD IN

•

DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES NUT THD
DISTANCE FROM SERRATED PORTION TO NUT END	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
THREAD LENGTH	0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM NUT THREAD IN
THREAD LENGTH	0.132 INCHES MINIMUM AND 0.245 INCHES MAXIMUM STUD THREAD IN
STYLE DESIGNATOR	LOCKED IN
THREAD PITCH DIAMETERS	+0.1639 TO 0.1654 INCHES STUD THREAD IN
OVERALL LENGTH	0.725 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
DISTANCE FROM SERRATED PORTION TO END OF STUD THREAD	0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD

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 1

4038T93P02Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 SFJ81-6SM6A?

SFJ81-6SM6A is a STUD,LOCKED IN.

What parts can replace SFJ81-6SM6A?

There is 1 known substitute for SFJ81-6SM6A: 4038T93P02. Substitute compatibility should be verified for your specific system.

What is the NSN for SFJ81-6SM6A?

SFJ81-6SM6A is cataloged in the U.S. Government catalog under NSN 5307-01-007-0548. This indicates validated use in U.S. government and defense supply chains.

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