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261389PC4 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

261389PC4: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 2.625 INCHES NOMINAL IN, length: 4.000 INCHES NOMINAL IN, corner_radius: 0.312 INCHES NOMINAL IN, body_thickness: 0.275 INCHES NOMINAL IN, peripheral_shape_style: RECTANGLE, FOUR HOLES, end_item_identification: SIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-384-3946, 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
261389PC4
NSN: 5340-00-384-3946
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
width2.625 INCHES NOMINAL IN
length4.000 INCHES NOMINAL IN
corner_radius0.312 INCHES NOMINAL IN
body_thickness0.275 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, FOUR HOLES
end_item_identificationSIGHT
cross-sectional_shape_styleFLAT
distance_between_holes_along_width2.000 INCHES NOMINAL IN
distance_between_holes_along_length3.375 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width0.312 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length0.312 INCHES NOMINAL IN
NSN5340-00-384-3946
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 261389PC4 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: 0.312 INCHES NOMINAL IN
•
CORNER RADIUS: 0.312 INCHES NOMINAL IN
•
LENGTH: 4.000 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.375 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 0.312 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.312 INCHES NOMINAL IN
CORNER RADIUS0.312 INCHES NOMINAL IN
LENGTH4.000 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH3.375 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLAT
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.312 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH2.625 INCHES NOMINAL IN
END ITEM IDENTIFICATIONSIGHT
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 261389PC4?
261389PC4 is a COVER,ACCESS.
What is the NSN for 261389PC4?
261389PC4 is cataloged in the U.S. Government catalog under NSN 5340-00-384-3946. 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.