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B102872 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B102872: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, housing_bore_diameter: 2.824 INCHES MINIMUM AND 2.825 INCHES MAXIMUM IN, accommodated_shaft_diameter: 2.500 INCHES NOMINAL IN, accommodated_shaft_maximum_rated_speed: 15600 FEET PER MINUTE FT. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-979-5642, 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
B102872
NSN: 5330-00-979-5642
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
housing_bore_diameter2.824 INCHES MINIMUM AND 2.825 INCHES MAXIMUM IN
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed15600 FEET PER MINUTE FT
NSN5330-00-979-5642
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B102872 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: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 2.824 INCHES MINIMUM AND 2.825 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 15600 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 2.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
HOUSING BORE DIAMETER2.824 INCHES MINIMUM AND 2.825 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED15600 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
MATERIALSTEEL CASE
SUBSTITUTES & CROSS-REFERENCES 3
2-300-125-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-300-125-02Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-300-125Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B102872?
B102872 is a SEAL,PLAIN ENCASED.
What parts can replace B102872?
There are 3 known substitutes for B102872: 2-300-125-01, 2-300-125-02, 2-300-125. Substitute compatibility should be verified for your specific system.
What is the NSN for B102872?
B102872 is cataloged in the U.S. Government catalog under NSN 5330-00-979-5642. 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.