PartsTable
Technical Data Sheet
7B2051 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: LEATHER SEALING ELEMENT, case_style: RECESSED, seal_width: 1.250 INCHES NOMINAL IN, housing_bore_diameter: 3.351 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 2.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-2169, 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
7B2051
NSN: 5330-00-641-2169
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleRECESSED
seal_width1.250 INCHES NOMINAL IN
housing_bore_diameter3.351 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.125 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-641-2169
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7B2051 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
SEALING ELEMENT STYLE: ANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER: 3.351 INCHES NOMINAL IN
MATERIAL: STEEL CASE
CASE STYLE: RECESSED
SEAL WIDTH: 1.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER3.351 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
CASE STYLERECESSED
SEAL WIDTH1.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
116183Interchangeable
interchangeable cross-reference
interchangeable
GPW9578Interchangeable
interchangeable cross-reference
interchangeable
103GPInterchangeable
interchangeable cross-reference
interchangeable
5209-9-3Interchangeable
interchangeable cross-reference
interchangeable
1142Interchangeable
interchangeable cross-reference
interchangeable
278754R1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7B2051?
7B2051 is a SEAL,PLAIN ENCASED.
What parts can replace 7B2051?
There are 15 known substitutes for 7B2051: 116183, GPW9578, 103GP and 12 more. Substitute compatibility should be verified for your specific system.
Is 7B2051 still available?
7B2051 is currently cancelled.
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