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28.30X1.78-41B8 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

28.30X1.78-41B8: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 1.104 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-123-5664, 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
28.30X1.78-41B8
NSN: 5331-01-123-5664
FSC: 5331 — O-ring
CAGE: F8226 — STACEM (FRA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter1.104 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-01-123-5664
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 28.30X1.78-41B8 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.104 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.104 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 2
1298023-2Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
2-025 E540-80 1W2BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28.30X1.78-41B8?
28.30X1.78-41B8 is a O-RING.
What parts can replace 28.30X1.78-41B8?
There are 2 known substitutes for 28.30X1.78-41B8: 1298023-2, 2-025 E540-80 1W2B. Substitute compatibility should be verified for your specific system.
What is the NSN for 28.30X1.78-41B8?
28.30X1.78-41B8 is cataloged in the U.S. Government catalog under NSN 5331-01-123-5664. This indicates validated use in U.S. government and defense supply chains.
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