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GS503CSD64 — INSERT,PANEL FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS503CSD64: INSERT,PANEL FASTENER.

The INSERT,PANEL FASTENER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, hole_type: PLAINPLAIN, insert_style: FLUSH FLANGEFLUSH FLANGE, body_diameter: 0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN, hole_diameter: 0.138 INCHES NOMINAL0.138 INCHES NOMINAL IN, flange_diameter: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-545-7197, 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
GS503CSD64
NSN: 5325-00-545-7197
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
hole_typePLAINPLAIN
insert_styleFLUSH FLANGEFLUSH FLANGE
body_diameter0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN
hole_diameter0.138 INCHES NOMINAL0.138 INCHES NOMINAL IN
flange_diameter0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
flange_thickness0.023 INCHES NOMINAL0.023 INCHES NOMINAL IN
special_features0.281 IN. PANEL THK0.281 IN. PANEL THK IN
features_providedGROMMETGROMMET
surface_treatmentANODIZE OVERALL
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-00-545-7197
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS503CSD64 · 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
•
FLANGE DIAMETER: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FEATURES PROVIDED: GROMMETGROMMET
•
HOLE DIAMETER: 0.138 INCHES NOMINAL0.138 INCHES NOMINAL IN
•
BODY DIAMETER: 0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
INSERT STYLE: FLUSH FLANGEFLUSH FLANGE
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FEATURES PROVIDEDGROMMETGROMMET
HOLE DIAMETER0.138 INCHES NOMINAL0.138 INCHES NOMINAL IN
BODY DIAMETER0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN
SPECIAL FEATURES0.281 IN. PANEL THK0.281 IN. PANEL THK IN
SURFACE TREATMENTANODIZE OVERALL
INSERT STYLEFLUSH FLANGEFLUSH FLANGE
MATERIALALUMINUM ALLOY OVERALL
HOLE TYPEPLAINPLAIN
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 1
S104D6-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 GS503CSD64?
GS503CSD64 is a INSERT,PANEL FASTENER.
What parts can replace GS503CSD64?
There is 1 known substitute for GS503CSD64: S104D6-1. Substitute compatibility should be verified for your specific system.
What is the NSN for GS503CSD64?
GS503CSD64 is cataloged in the U.S. Government catalog under NSN 5325-00-545-7197. 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.