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A6689-021-142 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A6689-021-142: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, center_hole_diameter: 0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-115-1361, 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
A6689-021-142
NSN: 5331-00-115-1361
NIINs: 001151361, 001631263, 002304455
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
center_hole_diameter0.920 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIP PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5331-00-115-1361
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6689-021-142 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: 0.063 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYPROPYLENE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.063 INCHES NOMINAL IN
MATERIALPLASTIC POLYPROPYLENE
SUBSTITUTES & CROSS-REFERENCES 6
20360 FIND NO. 6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
ARP568-021MILP1 9468Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
C12637PC8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
A06689.021.142Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
A6689-012-142Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5331PL1338745Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A6689-021-142?
A6689-021-142 is a O-RING.
What parts can replace A6689-021-142?
There are 6 known substitutes for A6689-021-142: 20360 FIND NO. 6, ARP568-021MILP1 9468, C12637PC8 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A6689-021-142?
A6689-021-142 is cataloged in the U.S. Government catalog under NSN 5331-00-115-1361. 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.