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CO2490-AB2 — CAP-PLUG,PROTECTIVE,DUST AND MOI

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

CO2490-AB2: CAP-PLUG,PROTECTIVE,DUST AND MOI.

CAP-PLUG,PROTECTIVE,DUST AND MOI. Key specifications include material: PLASTIC, overall_height: 0.5 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, thread_series_designator: NPT, closed_end_overall_diameter: 2.0 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-700-0490, 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
CO2490-AB2
NSN: 5340-01-700-0490
FSC: 5340 — Hardware, Commercial
CAGE: 03966 — ZURN INDUSTRIES INC (USA)
SPECIFICATIONS
materialPLASTIC
overall_height0.5 INCHES NOMINAL IN
thread_directionRIGHT-HAND
thread_series_designatorNPT
closed_end_overall_diameter2.0 INCHES NOMINAL IN
NSN5340-01-700-0490
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CO2490-AB2 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: 2.0 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: PLASTIC
•
THREAD SERIES DESIGNATOR: NPT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.5 INCHES NOMINAL IN
CLOSED END OVERALL DIAMETER2.0 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
MATERIALPLASTIC
THREAD SERIES DESIGNATORNPT
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CO2490-AB2?
CO2490-AB2 is a CAP-PLUG,PROTECTIVE,DUST AND MOI.
What is the NSN for CO2490-AB2?
CO2490-AB2 is cataloged in the U.S. Government catalog under NSN 5340-01-700-0490. 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.