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Technical Data Sheet
385961 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The 385961 is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, center_hole_diameter: 0.732 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, cross-sectional_shape_style: O-RING, material_document_and_classification: AMS-7278 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-166-1068, 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
385961
NSN: 5331-00-166-1068
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
center_hole_diameter0.732 INCHES MINIMUM AND 0.742 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
material_document_and_classificationAMS-7278 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5331-00-166-1068
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 385961 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: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
ELONGATION PERCENTAGE: 125 MAXIMUM
CENTER HOLE DIAMETER: 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
OUTSIDE DIAMETER: 0.928 INCHES MINIMUM AND 0.958 INCHES MAXIMUM IN
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM
OUTSIDE DIAMETER0.928 INCHES MINIMUM AND 0.958 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
AS3209-116Interchangeable
interchangeable cross-reference
interchangeable
946.91.27.761Interchangeable
interchangeable cross-reference
interchangeable
ST3001-116Interchangeable
interchangeable cross-reference
interchangeable
22046-14Interchangeable
interchangeable cross-reference
interchangeable
MILR25897Interchangeable
interchangeable cross-reference
interchangeable
4400173-0140Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 385961?
385961 is a 385961.
What parts can replace 385961?
There are 32 known substitutes for 385961: AS3209-116, 946.91.27.761, ST3001-116 and 29 more. Substitute compatibility should be verified for your specific system.
Is 385961 still available?
385961 is currently cancelled.
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