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OBP-18-90 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

OBP-18-90: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-341-9362, 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
OBP-18-90
NSN: 5331-01-341-9362
NIINs: 013419362, 013425424
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part NumberOBP-18-90
NSN5331-01-341-9362
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: OBP-18-90 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 3
SO-NB-P28Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
OBP-9-90Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
OBP-28-90Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 OBP-18-90?
OBP-18-90 is a O-RING.
What parts can replace OBP-18-90?
There are 3 known substitutes for OBP-18-90: SO-NB-P28, OBP-9-90, OBP-28-90. Substitute compatibility should be verified for your specific system.
What is the NSN for OBP-18-90?
OBP-18-90 is cataloged in the U.S. Government catalog under NSN 5331-01-341-9362. This indicates validated use in U.S. government and defense supply chains.
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