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W0021-18750 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

W0021-18750: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: GRAPHITE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-266-3288, 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
W0021-18750
NSN: 5330-01-266-3288
FSC: 5330 — Packing and Gasket Materials
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialGRAPHITE OVERALL
NSN5330-01-266-3288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: W0021-18750 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: GRAPHITE OVERALL
TECHNICAL CHARACTERISTICS
MATERIALGRAPHITE OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
W0021-0001Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
NAVA 3 ITEM 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
W0021-0001/1875 0-0001Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is W0021-18750?
W0021-18750 is a PACKING,PREFORMED.
What parts can replace W0021-18750?
There are 3 known substitutes for W0021-18750: W0021-0001, NAVA 3 ITEM 9, W0021-0001/1875 0-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for W0021-18750?
W0021-18750 is cataloged in the U.S. Government catalog under NSN 5330-01-266-3288. 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.