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GC503BB56 — CLAMP,LOOP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GC503BB56: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, style_designator: CENTER MOUNT, tongue_hole_type: ROUND, UNTHREADED, surface_treatment: CADMIUM OVERALL, loop_inside_diameter: 3.300 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-215-7489, 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
GC503BB56
NSN: 5340-01-215-7489
FSC: 5340 — Hardware, Commercial
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
style_designatorCENTER MOUNT
tongue_hole_typeROUND, UNTHREADED
surface_treatmentCADMIUM OVERALL
loop_inside_diameter3.300 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
NSN5340-01-215-7489
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GC503BB56 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
•
STYLE DESIGNATOR: CENTER MOUNT
•
SURFACE TREATMENT: CADMIUM OVERALL
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
MATERIAL: STEEL OVERALL
•
LOOP INSIDE DIAMETER: 3.300 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORCENTER MOUNT
SURFACE TREATMENTCADMIUM OVERALL
TONGUE HOLE TYPEROUND, UNTHREADED
MATERIALSTEEL OVERALL
LOOP INSIDE DIAMETER3.300 INCHES MINIMUM AND 3.310 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 GC503BB56?
GC503BB56 is a CLAMP,LOOP.
What is the NSN for GC503BB56?
GC503BB56 is cataloged in the U.S. Government catalog under NSN 5340-01-215-7489. 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.