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12437559 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12437559: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 5.500 INCHES NOMINAL IN, length: 4.200 INCHES NOMINAL IN, material: STEEL, body_thickness: 0.250 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, FOUR HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-466-5596, 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
12437559
NSN: 5340-01-466-5596
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width5.500 INCHES NOMINAL IN
length4.200 INCHES NOMINAL IN
materialSTEEL
body_thickness0.250 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, FOUR HOLES
cross-sectional_shape_styleFLAT
distance_between_holes_along_width4.250 INCHES NOMINAL IN
distance_between_holes_along_length3.324 INCHES NOMINAL IN
material_document_and_classificationMIL-A-12560 MIL SPEC SINGLE MATERIAL RESPONSE
distance_from_first_hole_centerline_to_end_along_width0.622 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length0.437 INCHES NOMINAL IN
NSN5340-01-466-5596
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12437559 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 0.622 INCHES NOMINAL IN
•
LENGTH: 4.200 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.324 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 4.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-12560 MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.622 INCHES NOMINAL IN
LENGTH4.200 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH3.324 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH4.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-12560 MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.437 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH5.500 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12437559?
12437559 is a COVER,ACCESS.
What is the NSN for 12437559?
12437559 is cataloged in the U.S. Government catalog under NSN 5340-01-466-5596. 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.