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25430-B82 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

25430-B82: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 0.537 INCHES NOMINAL IN, cross-sectional_height: 0.210 INCHES NOMINAL IN, end_item_identification: RELIEF VALVE 26FD12-120/S4/SP, material_document_and_classification: CAGE 77308.COMPOUND 3231-70 MFR REF SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-572-5312, 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
25430-B82
NSN: 5331-01-572-5312
FSC: 5331 — O-ring
CAGE: 72352 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA FARRIS ENGINEERING DIV CURTISS-WRIGHT VALVES DIVISION- FARRIS (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
hardness_rating70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter0.537 INCHES NOMINAL IN
cross-sectional_height0.210 INCHES NOMINAL IN
end_item_identificationRELIEF VALVE 26FD12-120/S4/SP
material_document_and_classificationCAGE 77308.COMPOUND 3231-70 MFR REF SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyNEOPRENE O-RING
NSN5331-01-572-5312
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 25430-B82 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: 0.210 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: CAGE 77308.COMPOUND 3231-70 MFR REF SINGLE MATERIAL RESPONSE
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 0.537 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.210 INCHES NOMINAL IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONCAGE 77308.COMPOUND 3231-70 MFR REF SINGLE MATERIAL RESPONSE
COLORBLACK
CENTER HOLE DIAMETER0.537 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNEOPRENE O-RING
END ITEM IDENTIFICATIONRELIEF VALVE 26FD12-120/S4/SP
MATERIALRUBBER CHLOROPRENE CLASS CR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 2
30220 ITEM 30Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PRP568-311-3231-70Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25430-B82?
25430-B82 is a O-RING.
What parts can replace 25430-B82?
There are 2 known substitutes for 25430-B82: 30220 ITEM 30, PRP568-311-3231-70. Substitute compatibility should be verified for your specific system.
What is the NSN for 25430-B82?
25430-B82 is cataloged in the U.S. Government catalog under NSN 5331-01-572-5312. This indicates validated use in U.S. government and defense supply chains.
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