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6854219 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6854219: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY A356.0 AND ALUMINUM ALLOY 6061, hole_diameter: 0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN, body_thickness: 0.690 INCHES NOMINAL IN, flange_thickness: 0.285 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN, outside_diameter: 10.410 INCHES MINIMUM AND 10.590 INCHES MAXIMUM IN, special_features: BOTTOM EDGE IS VENTED WITH GRID OF 1.56 INCH SQUARE CUTOUTS; BOTTOM EDGE IS ROUNDED TO RADIUS OF 0.13 INCH IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-510-7674, 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
6854219
NSN: 5340-01-510-7674
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY A356.0 AND ALUMINUM ALLOY 6061
hole_diameter0.279 INCHES MINIMUM AND 0.289 INCHES MAXIMUM IN
body_thickness0.690 INCHES NOMINAL IN
flange_thickness0.285 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
outside_diameter10.410 INCHES MINIMUM AND 10.590 INCHES MAXIMUM IN
special_featuresBOTTOM EDGE IS VENTED WITH GRID OF 1.56 INCH SQUARE CUTOUTS; BOTTOM EDGE IS ROUNDED TO RADIUS OF 0.13 INCH IN
surface_treatmentPRIMER EPOXY-POLYAMIDE AND PAINT POLYURETHANE
bolt_circle_diameter9.500 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity8
cross-sectional_shape_styleFLAT, ROUND RIB REINFORCED
NSN5340-01-510-7674
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6854219 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-P-24441/29, FORMULA 150, TYPE IV MIL SPEC 1ST TREATMENT RESPONSE AND FED-STD-595, HAZE GRAY 26270 FED STD 2ND TREATMENT RESPONSE AND MIL-C-85285 MIL SPEC 2ND TREATMENT RESPONSE
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FLANGE THICKNESS: 0.285 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
•
BOLT CIRCLE HOLE QUANTITY: 8
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B26,356-T6, CLASS 2B, GRADE D ASSN STD 1ST MATERIAL RESPONSE AND AMS 4027, AA6061-T62, -T651 ASSN STD 2ND MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT, ROUND RIB REINFORCED
•
OUTSIDE DIAMETER: 10.410 INCHES MINIMUM AND 10.590 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-24441/29, FORMULA 150, TYPE IV MIL SPEC 1ST TREATMENT RESPONSE AND FED-STD-595, HAZE GRAY 26270 FED STD 2ND TREATMENT RESPONSE AND MIL-C-85285 MIL SPEC 2ND TREATMENT RESPONSE
FLANGE THICKNESS0.285 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
BOLT CIRCLE HOLE QUANTITY8
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B26,356-T6, CLASS 2B, GRADE D ASSN STD 1ST MATERIAL RESPONSE AND AMS 4027, AA6061-T62, -T651 ASSN STD 2ND MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT, ROUND RIB REINFORCED
OUTSIDE DIAMETER10.410 INCHES MINIMUM AND 10.590 INCHES MAXIMUM IN
SECURING DEVICE TYPESPECIAL
BOLT CIRCLE DIAMETER9.500 INCHES NOMINAL IN
SPECIAL FEATURESBOTTOM EDGE IS VENTED WITH GRID OF 1.56 INCH SQUARE CUTOUTS; BOTTOM EDGE IS ROUNDED TO RADIUS OF 0.13 INCH 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6854219?
6854219 is a COVER,ACCESS.
What is the NSN for 6854219?
6854219 is cataloged in the U.S. Government catalog under NSN 5340-01-510-7674. 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.