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LL54D12S3 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LL54D12S3: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: PAN, thread_class: 2A A, thread_length: 0.188 INCHES MAXIMUM IN, fastener_length: 0.188 INCHES NOMINAL IN, locking_feature: STRIP THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-197-6818, 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
LL54D12S3
NSN: 5305-01-197-6818
FSC: 5305 — Screws
CAGE: 16941 — LONG-LOK LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_stylePAN
thread_class2A A
thread_length0.188 INCHES MAXIMUM IN
fastener_length0.188 INCHES NOMINAL IN
locking_featureSTRIP THREADS
thread_directionRIGHT-HAND
nominal_thread_diameter0.073 INCHES IN
thread_series_designatorUNF
NSN5305-01-197-6818
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LL54D12S3 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 0.188 INCHES NOMINAL IN
•
THREAD LENGTH: 0.188 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.073 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: STRIP THREADS
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.188 INCHES NOMINAL IN
THREAD LENGTH0.188 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.073 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATURESTRIP THREADS
THREAD CLASS2A A
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNF
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
10113524Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 LL54D12S3?
LL54D12S3 is a SCREW,CAP,SOCKET HEAD.
What parts can replace LL54D12S3?
There is 1 known substitute for LL54D12S3: 10113524. Substitute compatibility should be verified for your specific system.
What is the NSN for LL54D12S3?
LL54D12S3 is cataloged in the U.S. Government catalog under NSN 5305-01-197-6818. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.