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568230 — O-RING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

568230: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 2.484 INCHES NOMINAL IN, cross-sectional_height: 0.139 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: STYLE 568,70 DURO BUNA-N O-RING AS568A -230 SIZE. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-598-2158, 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
568230
NSN: 5325-00-598-2158
NIINs: 005982158, 015955700
FSC: 5325 — Fastening Devices
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter2.484 INCHES NOMINAL IN
cross-sectional_height0.139 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencySTYLE 568,70 DURO BUNA-N O-RING AS568A -230 SIZE
NSN5325-00-598-2158
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 568230 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL HARDNESS RATING: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.078 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: INTERNAL
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
USAGE DESIGNINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER2.500 INCHES NOMINAL IN
MAJOR THICKNESS0.078 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 2
568231Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
157694Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 568230?
568230 is a O-RING.
What parts can replace 568230?
There are 2 known substitutes for 568230: 568231, 157694. Substitute compatibility should be verified for your specific system.
What is the NSN for 568230?
568230 is cataloged in the U.S. Government catalog under NSN 5325-00-598-2158. 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.