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9M789-181-4 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9M789-181-4: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM, outside_diameter: 1.810 INCHES NOMINAL IN, fsc_application_data: AIRCRAFT STRUCTURAL COMPONENT, peripheral_shape_style: ROUND, ONE HOLE, end_item_identification: F-15 ACFT, bolt_hole_centerline_to_nearest_edge_distance: 0.905 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-170-9342, 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
9M789-181-4
NSN: 5340-01-170-9342
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM
outside_diameter1.810 INCHES NOMINAL IN
fsc_application_dataAIRCRAFT STRUCTURAL COMPONENT
peripheral_shape_styleROUND, ONE HOLE
end_item_identificationF-15 ACFT
bolt_hole_centerline_to_nearest_edge_distance0.905 INCHES NOMINAL IN
NSN5340-01-170-9342
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9M789-181-4 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
•
FSC APPLICATION DATA: AIRCRAFT STRUCTURAL COMPONENT
•
OUTSIDE DIAMETER: 1.810 INCHES NOMINAL IN
•
BOLT HOLE CENTERLINE TO NEAREST EDGE DISTANCE: 0.905 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, ONE HOLE
•
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAIRCRAFT STRUCTURAL COMPONENT
OUTSIDE DIAMETER1.810 INCHES NOMINAL IN
BOLT HOLE CENTERLINE TO NEAREST EDGE DISTANCE0.905 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, ONE HOLE
END ITEM IDENTIFICATIONF-15 ACFT
MATERIALALUMINUM
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 9M789-181-4?
9M789-181-4 is a COVER,ACCESS.
What is the NSN for 9M789-181-4?
9M789-181-4 is cataloged in the U.S. Government catalog under NSN 5340-01-170-9342. 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.