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3276803 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3276803: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 5.000 INCHES NOMINAL IN, length: 5.000 INCHES NOMINAL IN, material: STEEL, inside_width: 4.125 INCHES NOMINAL IN, hole_diameter: 0.281 INCHES NOMINAL IN, inside_length: 4.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-218-6736, 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
3276803
NSN: 5340-00-218-6736
FSC: 5340 — Hardware, Commercial
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
width5.000 INCHES NOMINAL IN
length5.000 INCHES NOMINAL IN
materialSTEEL
inside_width4.125 INCHES NOMINAL IN
hole_diameter0.281 INCHES NOMINAL IN
inside_length4.125 INCHES NOMINAL IN
body_thickness0.281 INCHES NOMINAL IN
features_providedSEALING CAPABILITY
surface_treatmentPAINT
corner_bevel_length0.500 INCHES NOMINAL IN
securing_device_typeTURNLOCK FASTENER
peripheral_shape_styleRECTANGLE, ONE CENTER HOLE
NSN5340-00-218-6736
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3276803 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: 2.500 INCHES NOMINAL IN
•
INSIDE WIDTH: 4.125 INCHES NOMINAL IN
•
LENGTH: 5.000 INCHES NOMINAL IN
•
INSIDE LENGTH: 4.125 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.500 INCHES NOMINAL IN
•
CORNER BEVEL LENGTH: 0.500 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE OR RECTANGULAR RECESS
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH2.500 INCHES NOMINAL IN
INSIDE WIDTH4.125 INCHES NOMINAL IN
LENGTH5.000 INCHES NOMINAL IN
INSIDE LENGTH4.125 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.500 INCHES NOMINAL IN
CORNER BEVEL LENGTH0.500 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
FEATURES PROVIDEDSEALING CAPABILITY
SECURING DEVICE TYPETURNLOCK FASTENER
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 1
G37BM17Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 3276803?
3276803 is a COVER,ACCESS.
What parts can replace 3276803?
There is 1 known substitute for 3276803: G37BM17. Substitute compatibility should be verified for your specific system.
What is the NSN for 3276803?
3276803 is cataloged in the U.S. Government catalog under NSN 5340-00-218-6736. 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.