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Technical Data Sheet

4-40X1/8LG — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

4-40X1/8LG: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_length: 0.125 INCHES NOMINAL IN, special_features: 4-40 X 1/8 IN LG; USED IN PLUG 3 IN, thread_direction: RIGHT-HAND, end_item_identification: LAU-88 LAUNCHER TEST ADAPTER WP QAD754-1 4920-01-562-9969. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-563-0026, 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
4-40X1/8LG
NSN: 5305-01-563-0026
FSC: 5305 — Screws
CAGE: 27899 — WILLIAMSRDM, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_length0.125 INCHES NOMINAL IN
special_features4-40 X 1/8 IN LG; USED IN PLUG 3 IN
thread_directionRIGHT-HAND
end_item_identificationLAU-88 LAUNCHER TEST ADAPTER WP QAD754-1 4920-01-562-9969
NSN5305-01-563-0026
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4-40X1/8LG · 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
•
THREAD LENGTH: 0.125 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.125 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURES4-40 X 1/8 IN LG; USED IN PLUG 3 IN
END ITEM IDENTIFICATIONLAU-88 LAUNCHER TEST ADAPTER WP QAD754-1 4920-01-562-9969
MATERIALSTEEL CORROSION RESISTING OVERALL
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 4-40X1/8LG?
4-40X1/8LG is a SETSCREW.
What is the NSN for 4-40X1/8LG?
4-40X1/8LG is cataloged in the U.S. Government catalog under NSN 5305-01-563-0026. 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.