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526740 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

526740: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: CLAMP BRONCHUS SS ANGLED COOLEY STYLE 8-1/2IN IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-614-9398, 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
526740
NSN: 5331-00-614-9398
NIINs: 006149398, 014661209
FSC: 5331 — O-ring
CAGE: 78640 — MITSUBISHI CATERPILLAR FORKLIFT AMERICA, INC (USA)
SPECIFICATIONS
special_featuresSTAINLESS STEEL; ANGLED; COOLEY STYLE; 8 1/2 IN. LG.; HAS ATRAUMATIC VASCULAR TEETH; FOR CLAMPING THE BRONCHUS DURING THORACIC PROCEDURES IN
part_name_assigned_by_controlling_agencyCLAMP BRONCHUS SS ANGLED COOLEY STYLE 8-1/2IN IN
NSN5331-00-614-9398
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 526740 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 8
09-41963Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AB009041963Reference document
Same NSN cross-reference
Reference document — Secondary reference
032059Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S14-140Reference document
Same NSN cross-reference
Reference document — Secondary reference
1281-3208Reference document
Same NSN cross-reference
Reference document — Secondary reference
1281-3206Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 526740?
526740 is a O-RING.
What parts can replace 526740?
There are 8 known substitutes for 526740: 09-41963, AB009041963, 032059 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 526740?
526740 is cataloged in the U.S. Government catalog under NSN 5331-00-614-9398. 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.