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Technical Data Sheet
PartsTable / COMPONENT / GC12A-16
GC12A-16 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include diameter: 0.5000 INCHES NOMINAL IN, material: STEEL OVERALL, overall_width: 0.3120 INCHES NOMINAL IN, style_designator: CENTER MOUNT, tongue_hole_type: ROUND, UNTHREADED, surface_treatment: CADMIUM AND CHROMATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-400-0470, 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
GC12A-16
NSN: 5340-01-400-0470
FSC: 5340
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
diameter0.5000 INCHES NOMINAL IN
materialSTEEL OVERALL
overall_width0.3120 INCHES NOMINAL IN
style_designatorCENTER MOUNT
tongue_hole_typeROUND, UNTHREADED
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.0300 INCHES MINIMUM AND 0.0340 INCHES MAXIMUM IN
loop_inside_diameter0.5000 INCHES NOMINAL IN
distance_from_loop_center_to_tongue_end0.6250 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
center_to_center_distance_between_loop_and_mounting_hole1.0000 INCHES NOMINAL IN
NSN5340-01-400-0470
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GC12A-16 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
DIAMETER: 0.5000 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
LOOP INSIDE DIAMETER: 0.5000 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.6250 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 1.0000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TONGUE HOLE TYPEROUND, UNTHREADED
DIAMETER0.5000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
LOOP INSIDE DIAMETER0.5000 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.6250 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE1.0000 INCHES NOMINAL IN
MATERIAL THICKNESS0.0300 INCHES MINIMUM AND 0.0340 INCHES MAXIMUM IN
OVERALL WIDTH0.3120 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
H098DBUpgraded Successor
successor cross-reference
successor
H1098DBUpgraded Successor
successor cross-reference
successor
H98DBUpgraded Successor
successor cross-reference
successor
1104Interchangeable
interchangeable cross-reference
interchangeable
MB16Interchangeable
interchangeable cross-reference
interchangeable
MB16ABInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GC12A-16?
GC12A-16 is a CLAMP,LOOP.
What parts can replace GC12A-16?
There are 8 known substitutes for GC12A-16: H098DB, H1098DB, H98DB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GC12A-16?
GC12A-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-400-0470. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026