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APR568-155 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

APR568-155: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE, outside_diameter: 4.193 INCHES NOMINAL IN, center_hole_diameter: 3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY LIQUID OXYGEN CLEANING IN ACCORDANCE WITH MIL-C-52211. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-022-5627, 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
APR568-155
NSN: 5331-01-022-5627
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
outside_diameter4.193 INCHES NOMINAL IN
center_hole_diameter3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY LIQUID OXYGEN CLEANING IN ACCORDANCE WITH MIL-C-52211
NSN5331-01-022-5627
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: APR568-155 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: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.193 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY LIQUID OXYGEN CLEANING IN ACCORDANCE WITH MIL-C-52211
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.193 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY LIQUID OXYGEN CLEANING IN ACCORDANCE WITH MIL-C-52211
SUBSTITUTES & CROSS-REFERENCES 2
AS568-155MILR8791Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
2601425-155Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 APR568-155?
APR568-155 is a O-RING.
What parts can replace APR568-155?
There are 2 known substitutes for APR568-155: AS568-155MILR8791, 2601425-155. Substitute compatibility should be verified for your specific system.
What is the NSN for APR568-155?
APR568-155 is cataloged in the U.S. Government catalog under NSN 5331-01-022-5627. This indicates validated use in U.S. government and defense supply chains.
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