21206-2 — STUD,LOCKED IN

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

21206-2: STUD,LOCKED IN.

The STUD,LOCKED IN is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 AND STEEL CORROSION RESISTING, thread_class: 3A STUD THREAD A, overall_length: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN, locking_feature: RING, LOCK KEYED, shoulder_length: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, special_features: DOUBLE STEP; KEY RING; 0.250-28 X0.375.24. This part is cataloged in the U.S.

Government catalog under NSN 5307-01-501-4518, 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

21206-2

NSN: 5307-01-501-4518
FSC: 5307 — Studs
CAGE: 01556 — STANLEY ENGINEERED FASTENING LLC (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 AND STEEL CORROSION RESISTING
thread_class	3A STUD THREAD A
overall_length	0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
locking_feature	RING, LOCK KEYED
shoulder_length	0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
special_features	DOUBLE STEP; KEY RING; 0.250-28 X0.375.24
style_designator	LOCKED IN
shoulder_diameter	0.284 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES STUD THREAD IN
thread_quantity_per_inch	28 NUT THREAD
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) STUD THREAD
distance_from_shoulder_portion_to_nut_end	0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
NSN	5307-01-501-4518

COMPONENT DIAGRAM

KEY FEATURES

•

STYLE DESIGNATOR: LOCKED IN

•

NOMINAL THREAD SIZE: 0.375 INCHES STUD THREAD IN

•

SHOULDER DIAMETER: 0.284 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN

•

LOCKING FEATURE: RING, LOCK KEYED

•

THREAD CLASS: 3A NUT THREAD A

TECHNICAL CHARACTERISTICS

STYLE DESIGNATOR	LOCKED IN
OVERALL LENGTH	0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
NOMINAL THREAD SIZE	0.375 INCHES STUD THREAD IN
NOMINAL THREAD SIZE	0.250 INCHES NUT THREAD IN
SHOULDER DIAMETER	0.284 INCHES MINIMUM AND 0.294 INCHES MAXIMUM IN
LOCKING FEATURE	RING, LOCK KEYED
SPECIAL FEATURES	DOUBLE STEP; KEY RING; 0.250-28 X0.375.24
THREAD CLASS	3A NUT THREAD A
THREAD CLASS	3A STUD THREAD A
DISTANCE FROM SHOULDER PORTION TO NUT END	0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM 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 3

J1206P02Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

KLS10157-4-2Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

J1206Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 21206-2?

21206-2 is a STUD,LOCKED IN.

What parts can replace 21206-2?

There are 3 known substitutes for 21206-2: J1206P02, KLS10157-4-2, J1206. Substitute compatibility should be verified for your specific system.

What is the NSN for 21206-2?

21206-2 is cataloged in the U.S. Government catalog under NSN 5307-01-501-4518. This indicates validated use in U.S. government and defense supply chains.

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