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Technical Data Sheet
418189-74 ✓ 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 PACKING,PREFORMED 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: 1.970 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN, cross-sectional_shape_style: O-RING, specification/standard_data: 80205-NAS1593 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-976-5375, 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
418189-74
NSN: 5330-00-976-5375
FSC: 5330
CAGE: 96214 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
center_hole_diameter1.970 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
specification/standard_data80205-NAS1593 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationMIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-976-5375
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 418189-74 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 DOCUMENT AND CLASSIFICATION: MIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA: 80205-NAS1593 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLE: O-RING
CENTER HOLE DIAMETER: 1.970 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA80205-NAS1593 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
CENTER HOLE DIAMETER1.970 INCHES MINIMUM AND 2.004 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
30808989 ITEM 23Interchangeable
interchangeable cross-reference
interchangeable
N-999-6082-A-007 ITEM 12Interchangeable
interchangeable cross-reference
interchangeable
M82348/1-136Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 418189-74?
418189-74 is a PACKING,PREFORMED.
What parts can replace 418189-74?
There are 3 known substitutes for 418189-74: 30808989 ITEM 23, N-999-6082-A-007 ITEM 12, M82348/1-136. Substitute compatibility should be verified for your specific system.
What is the NSN for 418189-74?
418189-74 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-976-5375. This indicates validated use in U.S. government and defense supply chains.
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