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0860AF254 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0860AF254: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include body_thickness: 0.1190 INCHES NOMINAL IN, outside_diameter: 3.9950 INCHES MINIMUM AND 4.0050 INCHES MAXIMUM IN, bolt_circle_diameter: 3.2500 INCHES NOMINAL IN, peripheral_shape_style: ROUND, MULTI HOLES, cross-sectional_shape_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-385-5597, 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
0860AF254
NSN: 5340-01-385-5597
FSC: 5340 — Hardware, Commercial
CAGE: 59885 — ROSEMOUNT AEROSPACE INC DBA ROSEMOUNT AEROSPACE INC (USA)
SPECIFICATIONS
body_thickness0.1190 INCHES NOMINAL IN
outside_diameter3.9950 INCHES MINIMUM AND 4.0050 INCHES MAXIMUM IN
bolt_circle_diameter3.2500 INCHES NOMINAL IN
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity5
cross-sectional_shape_styleFLAT
NSN5340-01-385-5597
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0860AF254 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
•
BOLT CIRCLE HOLE QUANTITY: 5
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
OUTSIDE DIAMETER: 3.9950 INCHES MINIMUM AND 4.0050 INCHES MAXIMUM IN
•
BOLT CIRCLE DIAMETER: 3.2500 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
BODY THICKNESS: 0.1190 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY5
CROSS-SECTIONAL SHAPE STYLEFLAT
OUTSIDE DIAMETER3.9950 INCHES MINIMUM AND 4.0050 INCHES MAXIMUM IN
BOLT CIRCLE DIAMETER3.2500 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
BODY THICKNESS0.1190 INCHES NOMINAL 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 0860AF254?
0860AF254 is a COVER,ACCESS.
What is the NSN for 0860AF254?
0860AF254 is cataloged in the U.S. Government catalog under NSN 5340-01-385-5597. 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.