PartsTable
Technical Data Sheet
Download PDF

10224820-2 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

10224820-2: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: COBALT ALLOY AND STEEL COMP 301, usage_design: EXTERNAL, inside_diameter: 0.187 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED, material_hardness_rating: 45.0 ROCKWELL C MINIMUM, material_document_and_classification: MIL-S-5059, TYPE 301, 1/4 HARD MIL SPEC 2ND MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-020-3873, 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
10224820-2
NSN: 5325-01-020-3873
FSC: 5325 — Fastening Devices
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialCOBALT ALLOY AND STEEL COMP 301
usage_designEXTERNAL
inside_diameter0.187 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating45.0 ROCKWELL C MINIMUM
material_document_and_classificationMIL-S-5059, TYPE 301, 1/4 HARD MIL SPEC 2ND MATERIAL RESPONSE
NSN5325-01-020-3873
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 10224820-2 · 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: 45.0 ROCKWELL C MINIMUM
•
USAGE DESIGN: EXTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059, TYPE 301, 1/4 HARD MIL SPEC 2ND MATERIAL RESPONSE
•
INSIDE DIAMETER: 0.187 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COBALT ALLOY AND STEEL COMP 301
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING45.0 ROCKWELL C MINIMUM
USAGE DESIGNEXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059, TYPE 301, 1/4 HARD MIL SPEC 2ND MATERIAL RESPONSE
INSIDE DIAMETER0.187 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALCOBALT ALLOY AND STEEL COMP 301
SUBSTITUTES & CROSS-REFERENCES 2
CA18163Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-STD-130KReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 10224820-2?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 10224820-2?
10224820-2 is a RING,RETAINING.
What parts can replace 10224820-2?
There are 2 known substitutes for 10224820-2: CA18163, MIL-STD-130K. Substitute compatibility should be verified for your specific system.
What is the NSN for 10224820-2?
10224820-2 is cataloged in the U.S. Government catalog under NSN 5325-01-020-3873. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 10224820-2

✓ 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.