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285AL-1400 AS-1 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

285AL-1400 AS-1: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include overall_height: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, overall_diameter: 2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN, end_item_identification: 4930-01-612-3541, opening_inside_diameter_for_which_designed: 2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-663-5747, 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
285AL-1400 AS-1
NSN: 5340-01-663-5747
FSC: 5340 — Hardware, Commercial
CAGE: 41592 — MORRISON BROTHERS CO DBA MORRISON BROTHERS CO (USA)
SPECIFICATIONS
overall_height0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
overall_diameter2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN
end_item_identification4930-01-612-3541
opening_inside_diameter_for_which_designed2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN
NSN5340-01-663-5747
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 285AL-1400 AS-1 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
•
OVERALL DIAMETER: 2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
OVERALL DIAMETER2.797 INCHES MINIMUM AND 2.827 INCHES MAXIMUM IN
OPENING INSIDE DIAMETER FOR WHICH DESIGNED2.485 INCHES MINIMUM AND 2.515 INCHES MAXIMUM IN
END ITEM IDENTIFICATION4930-01-612-3541
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 285AL-1400 AS-1?
285AL-1400 AS-1 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 285AL-1400 AS-1?
285AL-1400 AS-1 is cataloged in the U.S. Government catalog under NSN 5340-01-663-5747. 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.