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12268228 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12268228: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.250 INCHES NOMINAL IN, length: 4.000 INCHES NOMINAL IN, material: STEEL COMP 1040, corner_radius: 0.500 INCHES NOMINAL IN, hole_diameter: 0.530 INCHES NOMINAL IN, body_thickness: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-216-1049, 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
12268228
NSN: 5340-01-216-1049
FSC: 5340 — Hardware, Commercial
CAGE: 85336 — BARNES & REINECKE INC (USA)
SPECIFICATIONS
width3.250 INCHES NOMINAL IN
length4.000 INCHES NOMINAL IN
materialSTEEL COMP 1040
corner_radius0.500 INCHES NOMINAL IN
hole_diameter0.530 INCHES NOMINAL IN
body_thickness0.250 INCHES NOMINAL IN
surface_treatmentPAINT
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, FOUR HOLES
end_item_identification2350-01-031-0586
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-216-1049
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12268228 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: 0.500 INCHES NOMINAL IN
•
CORNER RADIUS: 0.500 INCHES NOMINAL IN
•
LENGTH: 4.000 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.000 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.250 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.500 INCHES NOMINAL IN
CORNER RADIUS0.500 INCHES NOMINAL IN
LENGTH4.000 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH3.000 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.250 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.500 INCHES NOMINAL IN
SURFACE TREATMENTPAINT
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 12268228?
12268228 is a COVER,ACCESS.
What is the NSN for 12268228?
12268228 is cataloged in the U.S. Government catalog under NSN 5340-01-216-1049. 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.