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2121198 — PUMP ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2121198: PUMP ASSEMBLY.

The PUMP ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.620 INCHES NOMINAL IN, radius: 0.310 INCHES NOMINAL IN, material: STEEL, outside_diameter: 1.6315 INCHES MINIMUM AND 1.6345 INCHES MAXIMUM IN, special_features: ANGLE ONE TO TWO DEGREE, style_designator: DOME. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-083-8276, 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
2121198
NSN: 5340-00-083-8276
NIINs: 000838276, 009189932
FSC: 5340 — Hardware, Commercial
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
height0.620 INCHES NOMINAL IN
radius0.310 INCHES NOMINAL IN
materialSTEEL
outside_diameter1.6315 INCHES MINIMUM AND 1.6345 INCHES MAXIMUM IN
special_featuresANGLE ONE TO TWO DEGREE
style_designatorDOME
material_thickness0.0625 INCHES NOMINAL IN
NSN5340-00-083-8276
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2121198 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
•
RADIUS: 0.310 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.6315 INCHES MINIMUM AND 1.6345 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: DOME
•
MATERIAL THICKNESS: 0.0625 INCHES NOMINAL IN
•
HEIGHT: 0.620 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
RADIUS0.310 INCHES NOMINAL IN
OUTSIDE DIAMETER1.6315 INCHES MINIMUM AND 1.6345 INCHES MAXIMUM IN
STYLE DESIGNATORDOME
MATERIAL THICKNESS0.0625 INCHES NOMINAL IN
HEIGHT0.620 INCHES NOMINAL IN
SPECIAL FEATURESANGLE ONE TO TWO DEGREE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
10885741Same 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 2121198?
2121198 is a PUMP ASSEMBLY.
What parts can replace 2121198?
There is 1 known substitute for 2121198: 10885741. Substitute compatibility should be verified for your specific system.
What is the NSN for 2121198?
2121198 is cataloged in the U.S. Government catalog under NSN 5340-00-083-8276. 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.