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12290475 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12290475: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.000 INCHES NOMINAL IN, length: 2.750 INCHES NOMINAL IN, material: ALUMINUM ALLOY 380.0, corner_radius: 0.310 INCHES NOMINAL IN, body_thickness: 0.380 INCHES NOMINAL IN, securing_device_type: THREADED FASTENER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-101-6151, 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
12290475
NSN: 5340-01-101-6151
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
width4.000 INCHES NOMINAL IN
length2.750 INCHES NOMINAL IN
materialALUMINUM ALLOY 380.0
corner_radius0.310 INCHES NOMINAL IN
body_thickness0.380 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width4
cross-sectional_shape_styleFLAT
distance_between_holes_along_width2.312 INCHES NOMINAL IN
distance_between_holes_along_length2.125 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width1.376 INCHES NOMINAL IN
NSN5340-01-101-6151
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12290475 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: 1.376 INCHES NOMINAL IN
•
CORNER RADIUS: 0.310 INCHES NOMINAL IN
•
LENGTH: 2.750 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.125 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.312 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
•
HOLE QUANTITY ALONG WIDTH: 4
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH1.376 INCHES NOMINAL IN
CORNER RADIUS0.310 INCHES NOMINAL IN
LENGTH2.750 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.125 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.312 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
HOLE QUANTITY ALONG WIDTH4
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.292 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLERECTANGLE, MULTI HOLES
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 12290475?
12290475 is a COVER,ACCESS.
What is the NSN for 12290475?
12290475 is cataloged in the U.S. Government catalog under NSN 5340-01-101-6151. 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.