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A6689.220.303CP — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A6689.220.303CP: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL OVERALL, peripheral_diameter: 1.637 INCHES NOMINAL IN, center_hole_diameter: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-063-6431, 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
A6689.220.303CP
NSN: 5330-01-063-6431
FSC: 5330 — Packing and Gasket Materials
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
hardness_rating75.0 SHORE DUROMETER A NOMINAL OVERALL
peripheral_diameter1.637 INCHES NOMINAL IN
center_hole_diameter1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5330-01-063-6431
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689.220.303CP 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL OVERALL
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
PERIPHERAL DIAMETER: 1.637 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL OVERALL
CRITICALITY CODE JUSTIFICATIONZZZY
ELONGATION PERCENTAGE125 MAXIMUM
PERIPHERAL DIAMETER1.637 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.347 INCHES MINIMUM AND 1.371 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
SUBSTITUTES & CROSS-REFERENCES 6
M83248/1-220CPReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
06689220303CPReference document
Same NSN cross-reference
Reference document — Secondary reference
20357 FIND 2.3Reference document
Same NSN cross-reference
Reference document — Secondary reference
20357 FIND 2.3CPReference document
Same NSN cross-reference
Reference document — Secondary reference
A6689.220.303Reference document
Same NSN cross-reference
Reference document — Secondary reference
06689220303Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A6689.220.303CP?
A6689.220.303CP is a PACKING,PREFORMED.
What parts can replace A6689.220.303CP?
There are 6 known substitutes for A6689.220.303CP: M83248/1-220CP, 06689220303CP, 20357 FIND 2.3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6689.220.303CP?
A6689.220.303CP is cataloged in the U.S. Government catalog under NSN 5330-01-063-6431. 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.