PartsTable / O-RING / SP3103
SP3103
✓ 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, outside_diameter: 0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, center_hole_diameter: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, end_item_identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-579-3158, 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
SP3103
NSN: 5331-00-579-3158 FSC: 5331 — O-RINGCAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
material RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR outside_diameter 0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN center_hole_diameter 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN cross-sectional_height 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN end_item_identification MULTIPLE LAUNCH ROCKET SYSTEM (MLRS) NSN 5331-00-579-3158
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: SP3103
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
• CENTER HOLE DIAMETER: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
• OUTSIDE DIAMETER: 0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
• CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION MULTIPLE LAUNCH ROCKET SYSTEM (MLRS) MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR CENTER HOLE DIAMETER 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN OUTSIDE DIAMETER 0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN CROSS-SECTIONAL HEIGHT 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
R-108 Interchangeable interchangeable cross-reference
interchangeable
SP1003 Interchangeable interchangeable cross-reference
interchangeable
SP1003CP Interchangeable interchangeable cross-reference
interchangeable
345890PC104 Interchangeable interchangeable cross-reference
interchangeable
SP14966 Interchangeable interchangeable cross-reference
interchangeable
78474 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SP3103?
SP3103 is a O-RING.
What parts can replace SP3103?
There are 30 known substitutes for SP3103: R-108, SP1003, SP1003CP and 27 more. Substitute compatibility should be verified for your specific system.
Is SP3103 still available?
SP3103 is currently cancelled.