PartsTable
Technical Data Sheet
Download PDF

ST9M519-4 — EYELET,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

ST9M519-4: EYELET,TURNLOCK FASTENER.

The EYELET,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, eyelet_height: 0.087 INCHES NOMINAL IN, body_thickness: 0.025 INCHES NOMINAL IN, turnlock_eyelet_style: EYELET, eyelet_inside_diameter: 0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, largest_outside_diameter: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-141-4003, 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
ST9M519-4
NSN: 5325-00-141-4003
FSC: 5325 — Fastening Devices
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
eyelet_height0.087 INCHES NOMINAL IN
body_thickness0.025 INCHES NOMINAL IN
turnlock_eyelet_styleEYELET
eyelet_inside_diameter0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
largest_outside_diameter0.438 INCHES NOMINAL IN
NSN5325-00-141-4003
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: ST9M519-4 · 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
•
EYELET HEIGHT: 0.087 INCHES NOMINAL IN
•
LARGEST OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
TURNLOCK EYELET STYLE: EYELET
•
EYELET INSIDE DIAMETER: 0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
BODY THICKNESS: 0.025 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EYELET HEIGHT0.087 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
TURNLOCK EYELET STYLEEYELET
EYELET INSIDE DIAMETER0.250 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY OVERALL
BODY THICKNESS0.025 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 8
2804443-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
5325PL1332730Reference document
Same NSN cross-reference
Reference document — Informative reference only
410031Reference document
Same NSN cross-reference
Reference document — Secondary reference
10385-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
GH4Reference document
Same NSN cross-reference
Reference document — Secondary reference
1670AS137Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy ST9M519-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is ST9M519-4?
ST9M519-4 is a EYELET,TURNLOCK FASTENER.
What parts can replace ST9M519-4?
There are 8 known substitutes for ST9M519-4: 2804443-1, 5325PL1332730, 410031 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST9M519-4?
ST9M519-4 is cataloged in the U.S. Government catalog under NSN 5325-00-141-4003. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — ST9M519-4

✓ 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.