KLS19158-3-18 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

KLS19158-3-18: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 420 AND STEEL COMP 303F, thread_class: 3A NUT THREAD A, thread_length: 0.657 INCHES NOMINAL NUT THREAD IN, overall_length: 1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES OVERALL, hardness_rating: 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-256-5919, 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

KLS19158-3-18

NSN: 5307-01-256-5919
FSC: 5307 — Studs
CAGE: 75237 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV MICRODOT PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 420 AND STEEL COMP 303F
thread_class	3A NUT THREAD A
thread_length	0.657 INCHES NOMINAL NUT THREAD IN
overall_length	1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
surface_finish	125.0 MICROINCHES OVERALL
hardness_rating	48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
locking_feature	RING, LOCK KEYED
style_designator	LOCKED IN
thread_direction	RIGHT-HAND STUD THREAD
nominal_thread_size	0.312 INCHES STUD THREAD IN
thread_quantity_per_inch	32 NUT THREAD
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD
NSN	5307-01-256-5919

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 125.0 MICROINCHES OVERALL

•

THREAD LENGTH: 0.312 INCHES NOMINAL STUD THREAD IN

•

HARDNESS RATING: 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5506 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5737 ASSN STD 2ND MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

TECHNICAL CHARACTERISTICS

SURFACE FINISH	125.0 MICROINCHES OVERALL
THREAD LENGTH	0.312 INCHES NOMINAL STUD THREAD IN
THREAD LENGTH	0.657 INCHES NOMINAL NUT THREAD IN
HARDNESS RATING	48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5506 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5737 ASSN STD 2ND MATERIAL RESPONSE
OVERALL LENGTH	1.052 INCHES MINIMUM AND 1.072 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
DISTANCE FROM END OF STUD END THREADS TO NUT END	0.833 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 3

J1196P18Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

J1196P18AReference document

Same NSN cross-reference

Reference document — Secondary reference

21196-18Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 KLS19158-3-18?

KLS19158-3-18 is a STUD,LOCKED IN.

What parts can replace KLS19158-3-18?

There are 3 known substitutes for KLS19158-3-18: J1196P18, J1196P18A, 21196-18. Substitute compatibility should be verified for your specific system.

What is the NSN for KLS19158-3-18?

KLS19158-3-18 is cataloged in the U.S. Government catalog under NSN 5307-01-256-5919. This indicates validated use in U.S. government and defense supply chains.

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