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GS500A-SD12B — INSERT,PANEL FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS500A-SD12B: INSERT,PANEL FASTENER.

The INSERT,PANEL FASTENER is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, hole_type: UNTHREADED-COUNTERSUNKUNTHREADED-COUNTERSUNK, insert_style: FLUSH FLANGEFLUSH FLANGE, hole_diameter: 0.136 INCHES NOMINAL0.136 INCHES NOMINAL IN, flange_diameter: 0.336 INCHES NOMINAL0.336 INCHES NOMINAL IN, flange_thickness: 0.023 INCHES NOMINAL0.023 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-513-5629, 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
GS500A-SD12B
NSN: 5325-01-513-5629
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
hole_typeUNTHREADED-COUNTERSUNKUNTHREADED-COUNTERSUNK
insert_styleFLUSH FLANGEFLUSH FLANGE
hole_diameter0.136 INCHES NOMINAL0.136 INCHES NOMINAL IN
flange_diameter0.336 INCHES NOMINAL0.336 INCHES NOMINAL IN
flange_thickness0.023 INCHES NOMINAL0.023 INCHES NOMINAL IN
shoulder_diameter0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
surface_treatmentOXIDE FILM OVERALL
end_item_identificationUSED ON EC-2 HAWKEYE AIRBORNE WARNING AND CONTROL SYSTEMUSED ON EC-2 HAWKEYE AIRBORNE WARNING AND CONTROL SYSTEM
material_accommodated_thickness0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
NSN5325-01-513-5629
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS500A-SD12B · 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: 0.336 INCHES NOMINAL0.336 INCHES NOMINAL IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.136 INCHES NOMINAL0.136 INCHES NOMINAL IN
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
SHOULDER DIAMETER: 0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
•
INSERT STYLE: FLUSH FLANGEFLUSH FLANGE
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.336 INCHES NOMINAL0.336 INCHES NOMINAL IN
MATERIAL ACCOMMODATED THICKNESS0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
HOLE DIAMETER0.136 INCHES NOMINAL0.136 INCHES NOMINAL IN
SURFACE TREATMENTOXIDE FILM OVERALL
SHOULDER DIAMETER0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
INSERT STYLEFLUSH FLANGEFLUSH FLANGE
END ITEM IDENTIFICATIONUSED ON EC-2 HAWKEYE AIRBORNE WARNING AND CONTROL SYSTEMUSED ON EC-2 HAWKEYE AIRBORNE WARNING AND CONTROL SYSTEM
MATERIALALUMINUM ALLOY OVERALL
HOLE TYPEUNTHREADED-COUNTERSUNKUNTHREADED-COUNTERSUNK
FLANGE THICKNESS0.023 INCHES NOMINAL0.023 INCHES NOMINAL 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GS500A-SD12B?
GS500A-SD12B is a INSERT,PANEL FASTENER.
What is the NSN for GS500A-SD12B?
GS500A-SD12B is cataloged in the U.S. Government catalog under NSN 5325-01-513-5629. 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.