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PartsTable / COMPONENT / 2121634
2121634 ✓ 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 OR RUBBER SYNTHETIC SEALING ELEMENT A, case_style: SQUARE, seal_width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, housing_bore_diameter: 4.003 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 2.938 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-1654, 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
2121634
NSN: 5330-00-291-1654
FSC: 5330
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT A
case_styleSQUARE
seal_width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
housing_bore_diameter4.003 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter2.938 INCHES NOMINAL IN
NSN5330-00-291-1654
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2121634 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
•
HOUSING BORE DIAMETER: 4.003 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT A
•
ACCOMMODATED SHAFT DIAMETER: 2.938 INCHES NOMINAL IN
•
SEAL WIDTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.003 INCHES NOMINAL IN
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT A
MATERIALSTEEL CASE
ACCOMMODATED SHAFT DIAMETER2.938 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT B
SEAL WIDTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
GGG-W-641Interchangeable
interchangeable cross-reference
interchangeable
962DInterchangeable
interchangeable cross-reference
interchangeable
B107.10Interchangeable
interchangeable cross-reference
interchangeable
302016Interchangeable
interchangeable cross-reference
interchangeable
A1805V152Interchangeable
interchangeable cross-reference
interchangeable
MS51911-48-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2121634?
2121634 is a SEAL,PLAIN ENCASED.
What parts can replace 2121634?
There are 24 known substitutes for 2121634: GGG-W-641, 962D, B107.10 and 21 more. Substitute compatibility should be verified for your specific system.
Is 2121634 still available?
2121634 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026