KNNS624JS-21 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

KNNS624JS-21: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, thread_class: 3A NUT THREAD A, thread_length: 0.640 INCHES NOMINAL NUT THREAD IN, overall_length: 1.812 INCHES NOMINAL IN, locking_feature: RING, LOCK KEYED, style_designator: LOCKED IN. This part is cataloged in the U.S.

Government catalog under NSN 5307-00-489-9378, 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

KNNS624JS-21

NSN: 5307-00-489-9378
FSC: 5307 — Studs
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 303
thread_class	3A NUT THREAD A
thread_length	0.640 INCHES NOMINAL NUT THREAD IN
overall_length	1.812 INCHES NOMINAL IN
locking_feature	RING, LOCK KEYED
style_designator	LOCKED IN
thread_direction	RIGHT-HAND STUD THREAD
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.500 INCHES NUT THREAD IN
thread_quantity_per_inch	13 NUT THREAD
thread_series_designator	UNIFIED NATIONAL COARSE (UNC) NUT THREAD
material_document_and_classification	AISI ASSN STD SINGLE MATERIAL RESPONSE
NSN	5307-00-489-9378

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD LENGTH: 0.640 INCHES NOMINAL NUT THREAD IN

•

STYLE DESIGNATOR: LOCKED IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE

•

THREAD DIRECTION: RIGHT-HAND STUD THREAD

•

NOMINAL THREAD SIZE: 0.500 INCHES NUT THREAD IN

TECHNICAL CHARACTERISTICS

THREAD LENGTH	0.640 INCHES NOMINAL NUT THREAD IN
THREAD LENGTH	0.500 INCHES NOMINAL STUD THREAD IN
STYLE DESIGNATOR	LOCKED IN
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH	1.812 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND STUD THREAD
THREAD DIRECTION	RIGHT-HAND NUT THREAD
NOMINAL THREAD SIZE	0.500 INCHES NUT THREAD IN
LOCKING FEATURE	RING, LOCK KEYED
SURFACE TREATMENT	PASSIVATE OVERALL

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

KNNS624S21Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is KNNS624JS-21?

KNNS624JS-21 is a STUD,LOCKED IN.

What parts can replace KNNS624JS-21?

There is 1 known substitute for KNNS624JS-21: KNNS624S21. Substitute compatibility should be verified for your specific system.

What is the NSN for KNNS624JS-21?

KNNS624JS-21 is cataloged in the U.S. Government catalog under NSN 5307-00-489-9378. This indicates validated use in U.S. government and defense supply chains.

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