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2419990 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2419990: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include material: ALUMINUM, design_type: FRICTION, overall_diameter: 1.430 INCHES MAXIMUM IN, special_features: EQUIPPED WITH RETAINING CABLE AND HOOK, inside_diameter_length: 0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN, round_cap_outside_surface_condition: RIBBED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-273-1645, 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
2419990
NSN: 5340-00-273-1645
FSC: 5340 — Hardware, Commercial
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM
design_typeFRICTION
overall_diameter1.430 INCHES MAXIMUM IN
special_featuresEQUIPPED WITH RETAINING CABLE AND HOOK
inside_diameter_length0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN
round_cap_outside_surface_conditionRIBBED
NSN5340-00-273-1645
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2419990 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: 1.430 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM
•
INSIDE DIAMETER LENGTH: 0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
TECHNICAL CHARACTERISTICS
DESIGN TYPEFRICTION
OVERALL DIAMETER1.430 INCHES MAXIMUM IN
SPECIAL FEATURESEQUIPPED WITH RETAINING CABLE AND HOOK
MATERIALALUMINUM
INSIDE DIAMETER LENGTH0.901 INCHES MINIMUM AND 0.911 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
SUBSTITUTES & CROSS-REFERENCES 1
3807-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2419990?
2419990 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 2419990?
There is 1 known substitute for 2419990: 3807-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 2419990?
2419990 is cataloged in the U.S. Government catalog under NSN 5340-00-273-1645. 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.