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SE90A38W-1-4 — COVER,PROTECTIVE,DUST AND MOISTU

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SE90A38W-1-4: COVER,PROTECTIVE,DUST AND MOISTU.

COVER,PROTECTIVE,DUST AND MOISTU. Key specifications include material: ALUMINUM, special_features: O/A HGTH 0.688, THREADED UNF 2.000-18, end_item_identification: JTIDS OTPS, open_end_inside_diameter: 2.100 INCHES NOMINAL IN, closed_end_overall_diameter: 2.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-489-0348, 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
SE90A38W-1-4
NSN: 5340-01-489-0348
FSC: 5340 — Hardware, Commercial
CAGE: 07418 — JOSLYN SUNBANK COMPANY, LLC DBA JOSLYN SUNBANK CO LLC (USA)
SPECIFICATIONS
materialALUMINUM
special_featuresO/A HGTH 0.688, THREADED UNF 2.000-18
end_item_identificationJTIDS OTPS
open_end_inside_diameter2.100 INCHES NOMINAL IN
closed_end_overall_diameter2.188 INCHES NOMINAL IN
NSN5340-01-489-0348
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SE90A38W-1-4 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
•
CLOSED END OVERALL DIAMETER: 2.188 INCHES NOMINAL IN
•
OPEN END INSIDE DIAMETER: 2.100 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS
CLOSED END OVERALL DIAMETER2.188 INCHES NOMINAL IN
SPECIAL FEATURESO/A HGTH 0.688, THREADED UNF 2.000-18
OPEN END INSIDE DIAMETER2.100 INCHES NOMINAL IN
END ITEM IDENTIFICATIONJTIDS OTPS
MATERIALALUMINUM
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 1
2046AS164-02Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 SE90A38W-1-4?
SE90A38W-1-4 is a COVER,PROTECTIVE,DUST AND MOISTU.
What parts can replace SE90A38W-1-4?
There is 1 known substitute for SE90A38W-1-4: 2046AS164-02. Substitute compatibility should be verified for your specific system.
What is the NSN for SE90A38W-1-4?
SE90A38W-1-4 is cataloged in the U.S. Government catalog under NSN 5340-01-489-0348. 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.