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LN21 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The KEY,SOCKET HEAD SCREW is a the manufacturer industrial component. Key specifications include material: PLASTIC HANDLE, blade_length: 3.440 INCHES NOMINAL IN, overall_length: 6.625 INCHES NOMINAL IN, style_designator: SCREWDRIVER HANDLE, surface_treatment: OXIDE OVERALL, wrenching_surface_size: 0.063 INCHES NOMINAL SINGLE END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-107-0038, 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
LN21
NSN: 5120-00-107-0038
FSC: 5120
CAGE: 96508 — APEX TOOL GROUP (USA)
SPECIFICATIONS
materialPLASTIC HANDLE
blade_length3.440 INCHES NOMINAL IN
overall_length6.625 INCHES NOMINAL IN
style_designatorSCREWDRIVER HANDLE
surface_treatmentOXIDE OVERALL
wrenching_surface_size0.063 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeHEXAGON SINGLE END EXTERNAL
specification/standard_data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-00-107-0038
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available KEY,SOCKET HEAD SCREW TITLE COMPONENT PN LN21 MFR KEY,SOCKET HEAD SCREW
KEY FEATURES
•
BLADE LENGTH: 3.440 INCHES NOMINAL IN
•
SURFACE TREATMENT: OXIDE OVERALL
•
SPECIFICATION/STANDARD DATA: 05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
WRENCHING SURFACE SHAPE: HEXAGON SINGLE END EXTERNAL
•
WRENCHING SURFACE SIZE: 0.063 INCHES NOMINAL SINGLE END IN
•
MATERIAL: PLASTIC HANDLE
•
STYLE DESIGNATOR: SCREWDRIVER HANDLE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH6.625 INCHES NOMINAL IN
BLADE LENGTH3.440 INCHES NOMINAL IN
SURFACE TREATMENTOXIDE OVERALL
SPECIFICATION/STANDARD DATA05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
WRENCHING SURFACE SHAPEHEXAGON SINGLE END EXTERNAL
WRENCHING SURFACE SIZE0.063 INCHES NOMINAL SINGLE END IN
MATERIALPLASTIC HANDLE
STYLE DESIGNATORSCREWDRIVER HANDLE
MATERIALSTEEL WRENCHING SURFACE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
TMAL3E2Interchangeable
interchangeable cross-reference
interchangeable
5120PL1331430Interchangeable
interchangeable cross-reference
interchangeable
GGG-K-00275 TY8STAInterchangeable
interchangeable cross-reference
interchangeable
A-A-2926Interchangeable
interchangeable cross-reference
interchangeable
GGG-K-00275Interchangeable
interchangeable cross-reference
interchangeable
GGG-K-275 TY7CL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LN21?
LN21 is a KEY,SOCKET HEAD SCREW.
What parts can replace LN21?
There are 23 known substitutes for LN21: TMAL3E2, 5120PL1331430, GGG-K-00275 TY8STA and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LN21?
LN21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-107-0038. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026