PartsTable
Technical Data Sheet
PartsTable / COMPONENT / Y400S221
Y400S221 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLIP,RETAINING is a the manufacturer industrial component. Key specifications include width: 0.328 INCHES NOMINAL IN, material: STEEL, overall_height: 0.594 INCHES NOMINAL IN, stock_diameter: 0.049 INCHES NOMINAL IN, style_designator: PIN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-740-2579, 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
Y400S221
NSN: 5340-00-740-2579
FSC: 5340
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
width0.328 INCHES NOMINAL IN
materialSTEEL
overall_height0.594 INCHES NOMINAL IN
stock_diameter0.049 INCHES NOMINAL IN
style_designatorPIN
casehardening_indicatorNOT CASEHARDENED
NSN5340-00-740-2579
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Y400S221 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
•
STYLE DESIGNATOR: PIN
•
MATERIAL: STEEL
•
WIDTH: 0.328 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
STOCK DIAMETER: 0.049 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.594 INCHES NOMINAL IN
STYLE DESIGNATORPIN
MATERIALSTEEL
WIDTH0.328 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
STOCK DIAMETER0.049 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SC-C-69992-4Interchangeable
interchangeable cross-reference
interchangeable
50025Interchangeable
interchangeable cross-reference
interchangeable
0S688-9Interchangeable
interchangeable cross-reference
interchangeable
7030023Interchangeable
interchangeable cross-reference
interchangeable
28P4Interchangeable
interchangeable cross-reference
interchangeable
6492AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy Y400S221?
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 Y400S221?
Y400S221 is a CLIP,RETAINING.
What parts can replace Y400S221?
There are 17 known substitutes for Y400S221: SC-C-69992-4, 50025, 0S688-9 and 14 more. Substitute compatibility should be verified for your specific system.
Is Y400S221 still available?
Y400S221 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — Y400S221

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026