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Technical Data Sheet
PartsTable / O-RING / 81424
81424 ✓ Verified by PartsTable
InLine · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

- Pigtail 2m with ST plug.<br>- Simplex fiber: 9/125µm OS1.<br>- no halogen. Key specifications include material: PLASTIC DIALLYL PHTHALATE AND GLASS FIBER BOARD, body_style: BARRIER TYPE, base_thickness: 0.453 INCHES IN, hardness_rating: 68.0 SHORE DUROMETER A NOMINAL, terminal_design: LINKED VERTICAL FEEDTHRU, surface_treatment: NICKEL AND TIN TERMINALS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-290-8783, 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
81424
NSN: 5331-00-290-8783
FSC: 5331 — O-RING
CAGE: 21587 — OPTICAL TECHNOLOGY DEVICES INC (USA)
SPECIFICATIONS
materialPLASTIC DIALLYL PHTHALATE AND GLASS FIBER BOARD
body_styleBARRIER TYPE
base_thickness0.453 INCHES IN
hardness_rating68.0 SHORE DUROMETER A NOMINAL
terminal_designLINKED VERTICAL FEEDTHRU
surface_treatmentNICKEL AND TIN TERMINALS
board_constructionHOLLOW CONSTRUCTION WITHOUT INSULATED STRIP
board_overall_width1.312 INCHES IN
board_overall_height1.328 INCHES IN
board_overall_length5.500 INCHES IN
center_hole_diameter5.794 INCHES NOMINAL IN
terminal_row_quantity2
NSN5331-00-290-8783
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81424 MFR: InLine ⚠ 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
•
CENTER HOLE DIAMETER: 5.794 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.103 INCHES NOMINAL IN
•
HARDNESS RATING: 68.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER5.794 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.103 INCHES NOMINAL IN
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS38338-135Interchangeable
interchangeable cross-reference
interchangeable
68700Interchangeable
interchangeable cross-reference
interchangeable
FS1072Interchangeable
interchangeable cross-reference
interchangeable
42TB8Interchangeable
interchangeable cross-reference
interchangeable
8-142YInterchangeable
interchangeable cross-reference
interchangeable
26KP457Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81424?
81424 is a TERMINAL BOARD manufactured by InLine.
What parts can replace 81424?
There are 7 known substitutes for 81424: MS38338-135, 68700, FS1072 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81424?
81424 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-290-8783. 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