PartsTable
Technical Data Sheet
124-838 ✓ 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 GASKET is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-576-4529, 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
124-838
NSN: 5330-00-576-4529
FSC: 5330
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
Part Number124-838
NSN5330-00-576-4529
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 124-838 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
MATERIAL: PAPER AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
OUTSIDE DIAMETER: 5.115 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
APERTURE DIAMETER: 4.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803 MIL SPEC ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALPAPER AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
OUTSIDE DIAMETER5.115 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
APERTURE DIAMETER4.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803 MIL SPEC ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
M21872Interchangeable
interchangeable cross-reference
interchangeable
142521Interchangeable
interchangeable cross-reference
interchangeable
142621Interchangeable
interchangeable cross-reference
interchangeable
D25915-11Interchangeable
interchangeable cross-reference
interchangeable
33720Interchangeable
interchangeable cross-reference
interchangeable
10015466-528Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 124-838?
124-838 is a GASKET.
What parts can replace 124-838?
There are 15 known substitutes for 124-838: M21872, 142521, 142621 and 12 more. Substitute compatibility should be verified for your specific system.
Is 124-838 still available?
124-838 is currently cancelled.
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