SUM-12 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

SUM-12: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thread_class: 3A NUT THREAD A, thread_length: 0.375 INCHES NOMINAL STUD THREAD IN, overall_length: 1.325 INCHES MINIMUM AND 1.393 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES OVERALL, locking_feature: RING, LOCK SERRATED. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-176-8428, 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

SUM-12

NSN: 5307-01-176-8428
FSC: 5307 — Studs
CAGE: 83324 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV ROSAN PRODUCTS (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING
thread_class	3A NUT THREAD A
thread_length	0.375 INCHES NOMINAL STUD THREAD IN
overall_length	1.325 INCHES MINIMUM AND 1.393 INCHES MAXIMUM IN
surface_finish	125.0 MICROINCHES OVERALL
locking_feature	RING, LOCK SERRATED
style_designator	LOCKED IN
thread_direction	RIGHT-HAND NUT THREAD
nominal_thread_size	0.250 INCHES STUD THREAD IN
thread_quantity_per_inch	20 STUD THREAD
thread_series_designator	UNJC STUD THREAD
material_document_and_classification	AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE
NSN	5307-01-176-8428

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES OVERALL

•

THREAD LENGTH: 0.375 INCHES NOMINAL STUD THREAD IN

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES OVERALL
THREAD LENGTH	0.375 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH	0.556 INCHES NOMINAL NUT THREAD IN
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	1.325 INCHES MINIMUM AND 1.393 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.250 INCHES NUT THREAD IN
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 1

9117M42P02Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is SUM-12?

SUM-12 is a STUD,LOCKED IN.

What parts can replace SUM-12?

There is 1 known substitute for SUM-12: 9117M42P02. Substitute compatibility should be verified for your specific system.

What is the NSN for SUM-12?

SUM-12 is cataloged in the U.S. Government catalog under NSN 5307-01-176-8428. This indicates validated use in U.S. government and defense supply chains.

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