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8721817 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8721817: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 12.250 INCHES NOMINAL IN, length: 15.250 INCHES NOMINAL IN, hole_diameter: 0.406 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, body_thickness: 0.250 INCHES NOMINAL IN, securing_device_type: THREADED FASTENER, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-422-2035, 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
8721817
NSN: 5340-00-422-2035
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width12.250 INCHES NOMINAL IN
length15.250 INCHES NOMINAL IN
hole_diameter0.406 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
body_thickness0.250 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
bolt_circle_hole_quantity7
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-00-422-2035
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8721817 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
•
LENGTH: 15.250 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 7
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
•
WIDTH: 12.250 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.406 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
•
BODY THICKNESS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH15.250 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY7
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
WIDTH12.250 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
BODY THICKNESS0.250 INCHES NOMINAL 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8721817?
8721817 is a COVER,ACCESS.
What is the NSN for 8721817?
8721817 is cataloged in the U.S. Government catalog under NSN 5340-00-422-2035. This indicates validated use in U.S. government and defense supply chains.
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