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418-2521 — SWITCHING UNIT,POWER TRANSFER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

418-2521: SWITCHING UNIT,POWER TRANSFER.

The SWITCHING UNIT,POWER TRANSFER is a the manufacturer industrial component. Key specifications include special_features: U/O HEAT EXCHANGER. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-014-0198, 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
418-2521
NSN: 5330-01-014-0198
NIINs: 010140198, 011417775, 013644895
FSC: 5330 — Packing and Gasket Materials
CAGE: 30889 — ERIKS SOUTHWEST INC DBA MONTCLAIR ENTERPRISES (USA)
SPECIFICATIONS
special_featuresU/O HEAT EXCHANGER
NSN5330-01-014-0198
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 418-2521 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
•
SUPPLEMENTARY FEATURES: CROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESCROSS-SECTIONAL SHAPE STYLE:NO.195 IRREGULAR SHAPE FROM FIIG A03200
SPECIAL FEATURESSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200
SUBSTITUTES & CROSS-REFERENCES 2
2137909Reference document
Same NSN cross-reference
Reference document — Secondary reference
10058221Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 418-2521?
418-2521 is a SWITCHING UNIT,POWER TRANSFER.
What parts can replace 418-2521?
There are 2 known substitutes for 418-2521: 2137909, 10058221. Substitute compatibility should be verified for your specific system.
What is the NSN for 418-2521?
418-2521 is cataloged in the U.S. Government catalog under NSN 5330-01-014-0198. 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.