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11811 ✓ 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 COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include length: 0.312 INCHES NOMINAL SQUARE END IN, material: WOOD HANDLE, body_length: 0.375 INCHES NOMINAL IN, eye_end_style: OVAL, overall_width: 0.625 INCHES NOMINAL IN, rating_method: ELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-143-0226, 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
11811
NSN: 5330-00-143-0226
FSC: 5330
CAGE: 05939 — SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION DIV OMNISEAL SOLUTIONS (USA)
SPECIFICATIONS
length0.312 INCHES NOMINAL SQUARE END IN
materialWOOD HANDLE
body_length0.375 INCHES NOMINAL IN
eye_end_styleOVAL
overall_width0.625 INCHES NOMINAL IN
rating_methodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
thread_length1.130 INCHES MINIMUM IN
turn_quantity5 SINGLE COMPONENT SINGLE WINDING
coil_form_typeSOLID SINGLE COMPONENT
flute_quantity4
inclosure_typeFULLY INCLOSED
overall_length0.375 INCHES NOMINAL IN
NSN5330-00-143-0226
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11811 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
C54444Interchangeable
interchangeable cross-reference
interchangeable
B94.9 1/4-20 UNC HS G H1Interchangeable
interchangeable cross-reference
interchangeable
5120-00-293-0878Interchangeable
interchangeable cross-reference
interchangeable
NN-H-93 TY3CL1GRAAInterchangeable
interchangeable cross-reference
interchangeable
NN-H-93Interchangeable
interchangeable cross-reference
interchangeable
1181-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11811?
11811 is a COIL,RADIO FREQUENCY.
What parts can replace 11811?
There are 13 known substitutes for 11811: C54444, B94.9 1/4-20 UNC HS G H1, 5120-00-293-0878 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11811?
11811 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-143-0226. 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