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MILR25897-904ES — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MILR25897-904ES: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN, material_document_and_classification: MIL-R-25897, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-763-3207, 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
MILR25897-904ES
NSN: 5331-00-763-3207
NIINs: 007633207, 010919160
FSC: 5331 — O-ring
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
material_document_and_classificationMIL-R-25897, TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-00-763-3207
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MILR25897-904ES 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: 0.072 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.072 INCHES NOMINAL IN
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
SUBSTITUTES & CROSS-REFERENCES 2
AB1586-904Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS83248/2-904Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 MILR25897-904ES?
MILR25897-904ES is a O-RING.
What parts can replace MILR25897-904ES?
There are 2 known substitutes for MILR25897-904ES: AB1586-904, MS83248/2-904. Substitute compatibility should be verified for your specific system.
What is the NSN for MILR25897-904ES?
MILR25897-904ES is cataloged in the U.S. Government catalog under NSN 5331-00-763-3207. This indicates validated use in U.S. government and defense supply chains.
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