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HC-EC-12 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HC-EC-12: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, outside_diameter: 12.000 INCHES NOMINAL IN, securing_device_type: THREADED FASTENER, peripheral_shape_style: ROUND, ONE HOLE, bolt_hole_centerline_to_nearest_edge_distance: 5.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-134-9108, 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
HC-EC-12
NSN: 5340-01-134-9108
FSC: 5340 — Hardware, Commercial
CAGE: 23619 — HYDRO-CRAFT, INC. (USA)
SPECIFICATIONS
materialSTEEL
outside_diameter12.000 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleROUND, ONE HOLE
bolt_hole_centerline_to_nearest_edge_distance5.000 INCHES NOMINAL IN
NSN5340-01-134-9108
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HC-EC-12 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
•
OUTSIDE DIAMETER: 12.000 INCHES NOMINAL IN
•
BOLT HOLE CENTERLINE TO NEAREST EDGE DISTANCE: 5.000 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: THREADED FASTENER
•
PERIPHERAL SHAPE STYLE: ROUND, ONE HOLE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER12.000 INCHES NOMINAL IN
BOLT HOLE CENTERLINE TO NEAREST EDGE DISTANCE5.000 INCHES NOMINAL IN
SECURING DEVICE TYPETHREADED FASTENER
PERIPHERAL SHAPE STYLEROUND, ONE HOLE
MATERIALSTEEL
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 HC-EC-12?
HC-EC-12 is a COVER,ACCESS.
What is the NSN for HC-EC-12?
HC-EC-12 is cataloged in the U.S. Government catalog under NSN 5340-01-134-9108. 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.