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0218633-6856 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

0218633-6856: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: INTERNAL, usage_design: INTERNAL, major_thickness: 0.015 INCHES NOMINAL IN, outside_diameter: 0.280 INCHES NOMINAL IN, surface_treatment: PASSIVATE. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-804-6856, 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
0218633-6856
NSN: 5325-00-804-6856
FSC: 5325 — Fastening Devices
CAGE: 0NEM2 — SZCZYPSKI, MICHAEL (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleINTERNAL
usage_designINTERNAL
major_thickness0.015 INCHES NOMINAL IN
outside_diameter0.280 INCHES NOMINAL IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating82.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-804-6856
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0218633-6856 · 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: 82.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
•
USAGE DESIGN: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.280 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.015 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: INTERNAL
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING82.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
USAGE DESIGNINTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.280 INCHES NOMINAL IN
MAJOR THICKNESS0.015 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 8
443338Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
12Z5010-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
N50000025HSTBReference document
Same NSN cross-reference
Reference document — Secondary reference
103A204-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
1051-0001-189Reference document
Same NSN cross-reference
Reference document — Secondary reference
5365008046856Reference document
Same NSN cross-reference
Reference document — Secondary 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 0218633-6856?
0218633-6856 is a RING,RETAINING.
What parts can replace 0218633-6856?
There are 8 known substitutes for 0218633-6856: 443338, 12Z5010-1, N50000025HSTB and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0218633-6856?
0218633-6856 is cataloged in the U.S. Government catalog under NSN 5325-00-804-6856. 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.