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12365523 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12365523: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 9.44 INCHES MINIMUM AND 9.56 INCHES MAXIMUM IN, length: 12.56 INCHES NOMINAL IN, material: STEEL, slot_width: 0.41 INCHES MINIMUM AND 0.47 INCHES MAXIMUM IN, slot_length: 1.44 INCHES MINIMUM AND 1.56 INCHES MAXIMUM IN, mounting_hole_type: UNABLE TO DECODE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-657-3751, 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
12365523
NSN: 5340-01-657-3751
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width9.44 INCHES MINIMUM AND 9.56 INCHES MAXIMUM IN
length12.56 INCHES NOMINAL IN
materialSTEEL
slot_width0.41 INCHES MINIMUM AND 0.47 INCHES MAXIMUM IN
slot_length1.44 INCHES MINIMUM AND 1.56 INCHES MAXIMUM IN
mounting_hole_typeUNABLE TO DECODE
peripheral_shape_styleRECTANGLE, TWO HOLES
end_item_identification2350-01-390-4683
mounting_hole/slot_quantity2
distance_between_hole_centers8.0 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyPLATE,MANIFOLD COVE
distance_from_first_hole_centerline_to_end_along_length1.0 INCHES NOMINAL IN
NSN5340-01-657-3751
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12365523 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: 12.56 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLE CENTERS: 8.0 INCHES NOMINAL IN
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 1.0 INCHES NOMINAL IN
•
MOUNTING HOLE/SLOT QUANTITY: 2
•
PERIPHERAL SHAPE STYLE: RECTANGLE, TWO HOLES
•
WIDTH: 9.44 INCHES MINIMUM AND 9.56 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LENGTH12.56 INCHES NOMINAL IN
DISTANCE BETWEEN HOLE CENTERS8.0 INCHES NOMINAL IN
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH1.0 INCHES NOMINAL IN
MOUNTING HOLE/SLOT QUANTITY2
PERIPHERAL SHAPE STYLERECTANGLE, TWO HOLES
WIDTH9.44 INCHES MINIMUM AND 9.56 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPLATE,MANIFOLD COVE
END ITEM IDENTIFICATION2350-01-390-4683
MATERIALSTEEL
SLOT WIDTH0.41 INCHES MINIMUM AND 0.47 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 12365523?
12365523 is a COVER,ACCESS.
What is the NSN for 12365523?
12365523 is cataloged in the U.S. Government catalog under NSN 5340-01-657-3751. 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.