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921015C1 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

921015C1: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT A, case_style: SQUARE, seal_width: 0.656 INCHES NOMINAL IN, surface_treatment: ZINC CASE, housing_bore_diameter: 2.875 INCHES NOMINAL IN, sealing_element_style: ANGULAR-OPPOSED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-285-4139, 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
921015C1
NSN: 5330-00-285-4139
FSC: 5330 — Packing and Gasket Materials
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT A
case_styleSQUARE
seal_width0.656 INCHES NOMINAL IN
surface_treatmentZINC CASE
housing_bore_diameter2.875 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter2.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-285-4139
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 921015C1 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: 0.656 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
HOUSING BORE DIAMETER: 2.875 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 2.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC CASE
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.656 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER2.875 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.000 INCHES NOMINAL IN
SURFACE TREATMENTZINC CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SUBSTITUTES & CROSS-REFERENCES 8
19886Reference document
Same NSN cross-reference
Reference document — Secondary reference
DW256-200-10-5STYLE33Reference document
Same NSN cross-reference
Reference document — Secondary reference
2097668-8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
200-287-21LReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
286AMM2Reference document
Same NSN cross-reference
Reference document — Secondary reference
200-287-21Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 921015C1?
921015C1 is a SEAL,PLAIN ENCASED.
What parts can replace 921015C1?
There are 8 known substitutes for 921015C1: 19886, DW256-200-10-5STYLE33, 2097668-8 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 921015C1?
921015C1 is cataloged in the U.S. Government catalog under NSN 5330-00-285-4139. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.