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Technical Data Sheet
PartsTable / COMPONENT / 12187-00
12187-00 ✓ 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 COUPLING,BOSS is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, nominal_thread_size: 1.000 INCHES ALL ENDS IN, end_item_identification: 3895013445480. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-182-5274, 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
12187-00
NSN: 5340-01-182-5274
FSC: 5340
CAGE: 82999 — WEST AMERICAN RUBBER CO STONER RUBBER CO DIV (USA)
SPECIFICATIONS
materialIRON OVERALL
nominal_thread_size1.000 INCHES ALL ENDS IN
end_item_identification3895013445480
NSN5340-01-182-5274
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12187-00 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
5L5101-076-21Interchangeable
interchangeable cross-reference
interchangeable
745-1870-010Interchangeable
interchangeable cross-reference
interchangeable
218693Interchangeable
interchangeable cross-reference
interchangeable
6WETXSInterchangeable
interchangeable cross-reference
interchangeable
88F5Interchangeable
interchangeable cross-reference
interchangeable
80X2381A045-Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12187-00?
12187-00 is a COUPLING,BOSS.
What parts can replace 12187-00?
There are 13 known substitutes for 12187-00: 5L5101-076-21, 745-1870-010, 218693 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12187-00?
12187-00 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-182-5274. 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