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R266PC61 1-4A — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R266PC61 1-4A: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, peripheral_diameter: 2.322 INCHES NOMINAL IN, center_hole_diameter: 1.990 INCHES NOMINAL IN, cross-sectional_height: 0.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-469-2555, 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
R266PC61 1-4A
NSN: 5330-00-469-2555
FSC: 5330 — Packing and Gasket Materials
CAGE: 53698 — SOMERSET ENGINEERING DIV MIDLAND-ROSS CORP (USA)
SPECIFICATIONS
materialRUBBER OVERALL
peripheral_diameter2.322 INCHES NOMINAL IN
center_hole_diameter1.990 INCHES NOMINAL IN
cross-sectional_height0.120 INCHES NOMINAL IN
NSN5330-00-469-2555
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R266PC61 1-4A 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: 0.120 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 2.322 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.990 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.120 INCHES NOMINAL IN
PERIPHERAL DIAMETER2.322 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.990 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
C16217PC7Reference document
Same NSN cross-reference
Reference document — Secondary reference
149108Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
C16258PC5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R266PC61 1-4A?
R266PC61 1-4A is a PACKING,PREFORMED.
What parts can replace R266PC61 1-4A?
There are 3 known substitutes for R266PC61 1-4A: C16217PC7, 149108, C16258PC5. Substitute compatibility should be verified for your specific system.
What is the NSN for R266PC61 1-4A?
R266PC61 1-4A is cataloged in the U.S. Government catalog under NSN 5330-00-469-2555. 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.