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A6689.020.144 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A6689.020.144: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-223-2763, 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
A6689.020.144
NSN: 5331-00-223-2763
NIINs: 002232763, 012214206
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5331-00-223-2763
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689.020.144 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.062 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.004 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 160 MAXIMUM
•
CENTER HOLE DIAMETER: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL IN
OUTSIDE DIAMETER1.004 INCHES NOMINAL IN
ELONGATION PERCENTAGE160 MAXIMUM
CENTER HOLE DIAMETER0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
ARP568-020MILP5 516-70Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PD5330-217-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
513 CD-020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3188606PC10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
100200-020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
APR568-020MILP5 516-70DURMReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A6689.020.144?
A6689.020.144 is a O-RING.
What parts can replace A6689.020.144?
There are 9 known substitutes for A6689.020.144: ARP568-020MILP5 516-70, PD5330-217-16, 513 CD-020 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6689.020.144?
A6689.020.144 is cataloged in the U.S. Government catalog under NSN 5331-00-223-2763. 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.