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Technical Data Sheet
GC12A8 ✓ 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 material: STEEL BAND, overall_width: 0.313 INCHES NOMINAL IN, style_designator: CENTER MOUNT, tongue_hole_type: ROUND, THREADED, surface_treatment: CADMIUM AND CHROMATE OVERALL, material_thickness: 0.032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-619-0577, 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
GC12A8
NSN: 5340-00-619-0577
FSC: 5340
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL BAND
overall_width0.313 INCHES NOMINAL IN
style_designatorCENTER MOUNT
tongue_hole_typeROUND, THREADED
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.032 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES IN
loop_inside_diameter0.250 INCHES NOMINAL IN
fastening_device_typePLAIN SLOTTED HEAD SCREW
distance_from_loop_center_to_tongue_end0.500 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
center_to_center_distance_between_loop_and_mounting_hole0.313 INCHES NOMINAL IN
NSN5340-00-619-0577
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GC12A8 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
FASTENING DEVICE TYPE: PLAIN SLOTTED HEAD SCREW
MATERIAL: STEEL BAND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.313 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.500 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 0.138 INCHES IN
TONGUE HOLE TYPE: ROUND, THREADED
TECHNICAL CHARACTERISTICS (FLIS)
FASTENING DEVICE TYPEPLAIN SLOTTED HEAD SCREW
MATERIALSTEEL BAND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.313 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.500 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.138 INCHES IN
TONGUE HOLE TYPEROUND, THREADED
MATERIAL THICKNESS0.032 INCHES NOMINAL IN
STYLE DESIGNATORCENTER MOUNT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
B8Upgraded Successor
successor cross-reference
successor
PER12Interchangeable
interchangeable cross-reference
interchangeable
PF12Interchangeable
interchangeable cross-reference
interchangeable
PH14Interchangeable
interchangeable cross-reference
interchangeable
125X13Interchangeable
interchangeable cross-reference
interchangeable
61-881Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GC12A8?
GC12A8 is a CLAMP,LOOP.
What parts can replace GC12A8?
There are 18 known substitutes for GC12A8: B8, PER12, PF12 and 15 more. Substitute compatibility should be verified for your specific system.
Is GC12A8 still available?
GC12A8 is currently cancelled.
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