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2531613 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2531613: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 0.734 INCHES NOMINAL IN, cross-sectional_height: 0.139 INCHES NOMINAL IN, end_item_identification: MK 45, MOD 4, material_document_and_classification: MIL-R-25897,TY1,C1 MIL SPEC ALL MATERIAL RESPONSES, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-506-9812, 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
2531613
NSN: 5331-01-506-9812
NIINs: 015069812, 015877325
FSC: 5331 — O-ring
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter0.734 INCHES NOMINAL IN
cross-sectional_height0.139 INCHES NOMINAL IN
end_item_identificationMK 45, MOD 4
material_document_and_classificationMIL-R-25897,TY1,C1 MIL SPEC ALL MATERIAL RESPONSES
part_name_assigned_by_controlling_agencyO-RING
NSN5331-01-506-9812
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2531613 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: 0.139 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25897,TY1,C1 MIL SPEC ALL MATERIAL RESPONSES
•
CENTER HOLE DIAMETER: 0.734 INCHES NOMINAL IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25897,TY1,C1 MIL SPEC ALL MATERIAL RESPONSES
CENTER HOLE DIAMETER0.734 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMK 45, MOD 4
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2531613?
2531613 is a O-RING.
What is the NSN for 2531613?
2531613 is cataloged in the U.S. Government catalog under NSN 5331-01-506-9812. This indicates validated use in U.S. government and defense supply chains.
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