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LS15263-04-8 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

LS15263-04-8: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.178 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, thread_length: 0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, screw_material: STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-306-3628, 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
LS15263-04-8
NSN: 5305-01-306-3628
FSC: 5305 — Screws
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.178 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
thread_length0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
screw_materialSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740
fastener_length0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
shank_surface_finish32.0 MICROINCHES
thread_surface_finish32.0 MICROINCHES
nominal_thread_diameter0.112 INCHES IN
NSN5305-01-306-3628
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: LS15263-04-8 · 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
•
HEAD HEIGHT: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
•
BEARING SURFACE OF HEAD SURFACE FINISH: 32.0 MICROINCHES
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
•
FASTENER LENGTH: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE
•
THREAD LENGTH: 0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SHANK SURFACE FINISH: 32.0 MICROINCHES
•
NOMINAL THREAD DIAMETER: 0.112 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
BEARING SURFACE OF HEAD SURFACE FINISH32.0 MICROINCHES
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE
THREAD LENGTH0.419 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SHANK SURFACE FINISH32.0 MICROINCHES
NOMINAL THREAD DIAMETER0.112 INCHES IN
HEAD STYLEFILLISTER
THREAD DIRECTIONRIGHT-HAND
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 LS15263-04-8?
LS15263-04-8 is a SCREW,MACHINE.
What is the NSN for LS15263-04-8?
LS15263-04-8 is cataloged in the U.S. Government catalog under NSN 5305-01-306-3628. 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.