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Technical Data Sheet
PartsTable / COMPONENT / L-85
L-85 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include color: WHITE AND BLACK FIRST SIDE INSCRIPTION, width: 6.000 INCHES NOMINAL IN, length: 6.000 INCHES NOMINAL IN, material: PAPER, case_style: SQUARE, roll_width: 6.000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-2161, 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
L-85
NSN: 5330-00-641-2161
FSC: 5330
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
colorWHITE AND BLACK FIRST SIDE INSCRIPTION
width6.000 INCHES NOMINAL IN
length6.000 INCHES NOMINAL IN
materialPAPER
case_styleSQUARE
roll_width6.000 INCHES NOMINAL IN
seal_width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
usage_formROLL
inscription1ST SIDE 1ST INSCRIPTION: DELICATE INSTRUMENTS,HANDLE WITH GREAT CARE; 2ND: PICTURE OF A SCALE
roll_length250.0 FEET NOMINAL FT
outside_diameter0.676 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
special_featuresGLASS IMPACT SENSOR TUBE IN CENTER OF LABEL; TUBE - 34.3 MM X 34.3 MM; TUBE RATED AT 10G AT 50 MS; TUBE CONTAINS DISTILLED WATER AND NO. 2 RED DYE G
NSN5330-00-641-2161
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L-85 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
•
HOUSING BORE DIAMETER: 4.249 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
ACCOMMODATED SHAFT DIAMETER: 3.125 INCHES NOMINAL IN
•
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.249 INCHES NOMINAL IN
CASE STYLESQUARE
SEAL WIDTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
ACCOMMODATED SHAFT DIAMETER3.125 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
550-16Interchangeable
interchangeable cross-reference
interchangeable
7974059Interchangeable
interchangeable cross-reference
interchangeable
L85Interchangeable
interchangeable cross-reference
interchangeable
82685Interchangeable
interchangeable cross-reference
interchangeable
31085Interchangeable
interchangeable cross-reference
interchangeable
1620AC1-032-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L-85?
L-85 is a SEAL,PLAIN ENCASED.
What parts can replace L-85?
There are 18 known substitutes for L-85: 550-16, 7974059, L85 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L-85?
L-85 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-2161. 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