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43-1186 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

43-1186: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, housing_bore_diameter: 1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-286-6847, 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
43-1186
NSN: 5330-00-286-6847
FSC: 5330 — Packing and Gasket Materials
CAGE: 81596 — FEDERAL-MOGUL CORP SEALING PRODUCTS GROUP VAN WERT PLANT (USA)
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
housing_bore_diameter1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1600 FEET PER MINUTE FT
NSN5330-00-286-6847
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 43-1186 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
•
SEAL WIDTH: 0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.873 INCHES MINIMUM AND 1.875 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1600 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.000 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 8
3914-47Reference document
Same NSN cross-reference
Reference document — Secondary reference
482522SKReference document
Same NSN cross-reference
Reference document — Secondary reference
1871Reference document
Same NSN cross-reference
Reference document — Secondary reference
STD770Reference document
Same NSN cross-reference
Reference document — Secondary reference
48668Reference document
Same NSN cross-reference
Reference document — Secondary reference
60254Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 43-1186?
43-1186 is a SEAL,PLAIN ENCASED.
What parts can replace 43-1186?
There are 8 known substitutes for 43-1186: 3914-47, 482522SK, 1871 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43-1186?
43-1186 is cataloged in the U.S. Government catalog under NSN 5330-00-286-6847. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.