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GS540E12A — EYELET,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS540E12A: EYELET,TURNLOCK FASTENER.

The EYELET,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL, eyelet_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, body_thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN, turnlock_eyelet_style: EYELET, eyelet_inside_diameter: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN, largest_outside_diameter: 0.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-490-9782, 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
GS540E12A
NSN: 5325-01-490-9782
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL
eyelet_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
body_thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
turnlock_eyelet_styleEYELET
eyelet_inside_diameter0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
largest_outside_diameter0.562 INCHES NOMINAL IN
NSN5325-01-490-9782
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS540E12A · 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: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
LARGEST OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
TURNLOCK EYELET STYLE: EYELET
•
EYELET INSIDE DIAMETER: 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL
•
BODY THICKNESS: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
EYELET HEIGHT0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
LARGEST OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
TURNLOCK EYELET STYLEEYELET
EYELET INSIDE DIAMETER0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 1100 OR ALUMINUM ALLOY 3003 OVERALL
BODY THICKNESS0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 2
GR540E12AReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
1271-6375Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GS540E12A?
GS540E12A is a EYELET,TURNLOCK FASTENER.
What parts can replace GS540E12A?
There are 2 known substitutes for GS540E12A: GR540E12A, 1271-6375. Substitute compatibility should be verified for your specific system.
What is the NSN for GS540E12A?
GS540E12A is cataloged in the U.S. Government catalog under NSN 5325-01-490-9782. 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.