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185N570-5 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

185N570-5: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 11.455 INCHES MINIMUM AND 11.515 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, material_document_and_classification: MIL-P-5516,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-247-5649, 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
185N570-5
NSN: 5331-00-247-5649
FSC: 5331 — O-ring
CAGE: 25500 — LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter11.455 INCHES MINIMUM AND 11.515 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
material_document_and_classificationMIL-P-5516,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-00-247-5649
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 185N570-5 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
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-5516,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 11.455 INCHES MINIMUM AND 11.515 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER11.455 INCHES MINIMUM AND 11.515 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 4
MS29513-277Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2962-14ALT3PCU3Reference document
Same NSN cross-reference
Reference document — Secondary reference
PD5330-212-19Reference document
Same NSN cross-reference
Reference document — Secondary reference
ARP568-277Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 185N570-5?
185N570-5 is a O-RING.
What parts can replace 185N570-5?
There are 4 known substitutes for 185N570-5: MS29513-277, 2962-14ALT3PCU3, PD5330-212-19 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 185N570-5?
185N570-5 is cataloged in the U.S. Government catalog under NSN 5331-00-247-5649. This indicates validated use in U.S. government and defense supply chains.
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