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C20605-0603 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

C20605-0603: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC SILICONE, center_hole_diameter: 1.239 INCHES NOMINAL IN, cross-sectional_height: 0.070 INCHES NOMINAL IN, end_item_identification: V-22 AIRCRAFT, part_name_assigned_by_controlling_agency: O-RING,COND,026,1.239,.070,FLS/P. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-680-5792, 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
C20605-0603
NSN: 5331-01-680-5792
FSC: 5331 — O-ring
CAGE: 59885 — ROSEMOUNT AEROSPACE INC DBA ROSEMOUNT AEROSPACE INC (USA)
SPECIFICATIONS
materialPLASTIC SILICONE
center_hole_diameter1.239 INCHES NOMINAL IN
cross-sectional_height0.070 INCHES NOMINAL IN
end_item_identificationV-22 AIRCRAFT
part_name_assigned_by_controlling_agencyO-RING,COND,026,1.239,.070,FLS/P
NSN5331-01-680-5792
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C20605-0603 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
•
CROSS-SECTIONAL HEIGHT: 0.070 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.239 INCHES NOMINAL IN
•
MATERIAL: PLASTIC SILICONE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.239 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYO-RING,COND,026,1.239,.070,FLS/P
END ITEM IDENTIFICATIONV-22 AIRCRAFT
MATERIALPLASTIC SILICONE
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
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 C20605-0603?
C20605-0603 is a O-RING.
What is the NSN for C20605-0603?
C20605-0603 is cataloged in the U.S. Government catalog under NSN 5331-01-680-5792. 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.