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XM123-217-5 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

XM123-217-5: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-606-3902, 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
XM123-217-5
NSN: 5331-01-606-3902
FSC: 5331 — O-ring
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
Part NumberXM123-217-5
NSN5331-01-606-3902
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: XM123-217-5 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
SUBSTITUTES & CROSS-REFERENCES 5
MX123-217-5CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
B8743 REV I ITEM 2Reference document
Same NSN cross-reference
Reference document — Secondary reference
B8743 REV I ITEM 2CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MX123-217-5Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
B8743Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 XM123-217-5?
XM123-217-5 is a O-RING.
What parts can replace XM123-217-5?
There are 5 known substitutes for XM123-217-5: MX123-217-5CP, B8743 REV I ITEM 2, B8743 REV I ITEM 2CP and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XM123-217-5?
XM123-217-5 is cataloged in the U.S. Government catalog under NSN 5331-01-606-3902. 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.