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1819778 — PLUG,PROTECTIVE,DUST AND MOISTUR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1819778: PLUG,PROTECTIVE,DUST AND MOISTUR.

PLUG,PROTECTIVE,DUST AND MOISTUR. Key specifications include material: PLASTIC, design_type: FRICTION, overall_diameter: 1.063 INCHES NOMINAL IN, features_provided: SHOULDER, opening_inside_diameter_for_which_designed: 0.940 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-660-0912, 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
1819778
NSN: 5340-00-660-0912
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC
design_typeFRICTION
overall_diameter1.063 INCHES NOMINAL IN
features_providedSHOULDER
opening_inside_diameter_for_which_designed0.940 INCHES NOMINAL IN
NSN5340-00-660-0912
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1819778 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
•
DESIGN TYPE: FRICTION
•
OVERALL DIAMETER: 1.063 INCHES NOMINAL IN
•
FEATURES PROVIDED: SHOULDER
•
OPENING INSIDE DIAMETER FOR WHICH DESIGNED: 0.940 INCHES NOMINAL IN
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER1.063 INCHES NOMINAL IN
FEATURES PROVIDEDSHOULDER
OPENING INSIDE DIAMETER FOR WHICH DESIGNED0.940 INCHES NOMINAL IN
MATERIALPLASTIC
SUBSTITUTES & CROSS-REFERENCES 2
1704-76Reference document
Same NSN cross-reference
Reference document — Secondary reference
604-900-115Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1819778?
1819778 is a PLUG,PROTECTIVE,DUST AND MOISTUR.
What parts can replace 1819778?
There are 2 known substitutes for 1819778: 1704-76, 604-900-115. Substitute compatibility should be verified for your specific system.
What is the NSN for 1819778?
1819778 is cataloged in the U.S. Government catalog under NSN 5340-00-660-0912. This indicates validated use in U.S. government and defense supply chains.
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