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Technical Data Sheet
PartsTable / COMPONENT / 219373
219373 ✓ 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 BACKUP,FEEDBACK,CYLINDER is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: ALUMINUM ALLOY,ANODIZED,4.625 IN. LG.

0.875 IN. W IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-250-2156, 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
219373
NSN: 5330-00-250-2156
FSC: 5330
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
general_characteristics_item_descriptionALUMINUM ALLOY,ANODIZED,4.625 IN. LG. 0.875 IN. W IN
NSN5330-00-250-2156
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 219373 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
•
OUTSIDE DIAMETER: 2.312 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.843 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.312 INCHES NOMINAL IN
APERTURE DIAMETER1.843 INCHES NOMINAL IN
SPECIAL FEATURESRUBBER COMPOUND HAVING GOOD RESISTANCE TO PETROLEUM OILS
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER SYNTHETIC OVERALL
END ITEM IDENTIFICATION2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
21937-2Interchangeable
interchangeable cross-reference
interchangeable
21937-3Interchangeable
interchangeable cross-reference
interchangeable
21937Interchangeable
interchangeable cross-reference
interchangeable
GF510042Interchangeable
interchangeable cross-reference
interchangeable
G42Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 219373?
219373 is a BACKUP,FEEDBACK,CYLINDER.
What parts can replace 219373?
There are 5 known substitutes for 219373: 21937-2, 21937-3, 21937 and 2 more. Substitute compatibility should be verified for your specific system.
Is 219373 still available?
219373 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