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1668AS425-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1668AS425-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include body_thickness: 0.250 INCHES NOMINAL IN, flange_thickness: 0.125 INCHES NOMINAL IN, end_item_identification: 4920-01-236-4555 MOBILE MAGNETIC PAR,TTU-432/E, first_recess_inside_height: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: RECESS, SAME SHAPE AS THE PERIPHERY. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-331-0781, 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
1668AS425-1
NSN: 5340-01-331-0781
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
body_thickness0.250 INCHES NOMINAL IN
flange_thickness0.125 INCHES NOMINAL IN
end_item_identification4920-01-236-4555 MOBILE MAGNETIC PAR,TTU-432/E
first_recess_inside_height0.125 INCHES NOMINAL IN
cross-sectional_shape_styleRECESS, SAME SHAPE AS THE PERIPHERY
NSN5340-01-331-0781
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1668AS425-1 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
•
FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECESS, SAME SHAPE AS THE PERIPHERY
•
BODY THICKNESS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.125 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECESS, SAME SHAPE AS THE PERIPHERY
END ITEM IDENTIFICATION4920-01-236-4555 MOBILE MAGNETIC PAR,TTU-432/E
BODY THICKNESS0.250 INCHES NOMINAL IN
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 1668AS425-1?
1668AS425-1 is a COVER,ACCESS.
What is the NSN for 1668AS425-1?
1668AS425-1 is cataloged in the U.S. Government catalog under NSN 5340-01-331-0781. 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.