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818798-1 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

818798-1: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE BODY, overall_height: 0.750 INCHES NOMINAL IN, special_features: MAKE FROM 740876-1, -2 OR -3, style_designator: THRU-HOLE, base_inside_diameter: 1.000 INCHES NOMINAL IN, supplementary_features: MATT REINFORCED W DACRON FABRIC. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-469-6545, 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
818798-1
NSN: 5340-01-469-6545
FSC: 5340 — Hardware, Commercial
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
overall_height0.750 INCHES NOMINAL IN
special_featuresMAKE FROM 740876-1, -2 OR -3
style_designatorTHRU-HOLE
base_inside_diameter1.000 INCHES NOMINAL IN
supplementary_featuresMATT REINFORCED W DACRON FABRIC
end_item_identificationF-18 E/F
opening_inside_diameter0.885 INCHES NOMINAL IN
NSN5340-01-469-6545
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 818798-1 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
•
OPENING INSIDE DIAMETER: 0.885 INCHES NOMINAL IN
•
SUPPLEMENTARY FEATURES: MATT REINFORCED W DACRON FABRIC
•
STYLE DESIGNATOR: THRU-HOLE
•
BASE INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE BODY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.750 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.885 INCHES NOMINAL IN
SUPPLEMENTARY FEATURESMATT REINFORCED W DACRON FABRIC
STYLE DESIGNATORTHRU-HOLE
BASE INSIDE DIAMETER1.000 INCHES NOMINAL IN
SPECIAL FEATURESMAKE FROM 740876-1, -2 OR -3
END ITEM IDENTIFICATIONF-18 E/F
MATERIALRUBBER SILICONE BODY
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 818798-1?
818798-1 is a BOOT,DUST AND MOISTURE SEAL.
What is the NSN for 818798-1?
818798-1 is cataloged in the U.S. Government catalog under NSN 5340-01-469-6545. 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.