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PartsTable / COMPONENT / S1955
S1955 ✓ 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 S1955 is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND STEEL OVERALL, outside_diameter: 7.625 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 7.312 INCHES NOMINAL IN, cross-sectional_thickness: 0.078 INCHES NOMINAL IN, cross-sectional_shape_style: METAL WITH SOFT FILLER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-3228, 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
S1955
NSN: 5330-00-251-3228
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialASBESTOS AND STEEL OVERALL
outside_diameter7.625 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter7.312 INCHES NOMINAL IN
cross-sectional_thickness0.078 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WITH SOFT FILLER
NSN5330-00-251-3228
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S1955 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 SHAPE STYLE: METAL WITH SOFT FILLER
•
OUTSIDE DIAMETER: 7.625 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND STEEL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
APERTURE DIAMETER: 7.312 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.078 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEMETAL WITH SOFT FILLER
OUTSIDE DIAMETER7.625 INCHES NOMINAL IN
MATERIALASBESTOS AND STEEL OVERALL
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER7.312 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.078 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2784Interchangeable
interchangeable cross-reference
interchangeable
AAL-2282Interchangeable
interchangeable cross-reference
interchangeable
676 1-4Interchangeable
interchangeable cross-reference
interchangeable
S1955Interchangeable
interchangeable cross-reference
interchangeable
6048783Interchangeable
interchangeable cross-reference
interchangeable
200X302-400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1955?
S1955 is a S1955.
What parts can replace S1955?
There are 8 known substitutes for S1955: 2784, AAL-2282, 676 1-4 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S1955?
S1955 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-3228. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026