PartsTable
Technical Data Sheet
PartsTable / O-RING / 4160500-78
4160500-78 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, end_item_identification: NSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM), material_document_and_classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-618-5361, 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
4160500-78
NSN: 5331-00-618-5361
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
end_item_identificationNSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM)
material_document_and_classificationMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-00-618-5361
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4160500-78 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONNSN 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM)
CENTER HOLE DIAMETER0.546 INCHES MINIMUM AND 0.556 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
101015Interchangeable
interchangeable cross-reference
interchangeable
FFS92Interchangeable
interchangeable cross-reference
interchangeable
SMB433283Interchangeable
interchangeable cross-reference
interchangeable
457-60-015Interchangeable
interchangeable cross-reference
interchangeable
SR-822A-60-015Interchangeable
interchangeable cross-reference
interchangeable
MS29513-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4160500-78?
4160500-78 is a O-RING.
What parts can replace 4160500-78?
There are 20 known substitutes for 4160500-78: 101015, FFS92, SMB433283 and 17 more. Substitute compatibility should be verified for your specific system.
Is 4160500-78 still available?
4160500-78 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026