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8-5521 — O-RING

✓ Government record, cited
Origin Storage · ORING SEAL
PRODUCT OVERVIEW

8-5521: O-RING.

This OM3 Duplex Multimode Fibre Optic Cable is ideal for connecting 10GBase-SR, 10GBase-LRM, SFP+ and QSFP+ transceivers for 10 gigabit network connections. This cable has a LSZH jacket which protects from toxic and corrosive gases in poorly ventilated spaces and other areas where it is most critical. This cable also provides backward compatibility with existing 50/125 equipment and the performance headroom required to support LED and VCSEL laser light sources, and 10 Gigabit Ethernet applications.

This part is cataloged in the U.S. Government catalog under NSN 5331-01-268-0874, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
8-5521
NSN: 5331-01-268-0874
FSC: 5331 — O-ring
CAGE: 17514 — THERMAL DYNAMICS CORP (USA)
SPECIFICATIONS
Part Number8-5521
ManufacturerOrigin Storage
NSN5331-01-268-0874
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8-5521 MFR: Origin Storage ⚠ 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
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 1
333E088R62Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8-5521?
8-5521 is a O-RING manufactured by Origin Storage.
What parts can replace 8-5521?
There is 1 known substitute for 8-5521: 333E088R62. Substitute compatibility should be verified for your specific system.
What is the NSN for 8-5521?
8-5521 is cataloged in the U.S. Government catalog under NSN 5331-01-268-0874. This indicates validated use in U.S. government and defense supply chains.
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