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21522151-178 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21522151-178: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-433-0510, 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
21522151-178
NSN: 5330-01-433-0510
FSC: 5330 — Packing and Gasket Materials
CAGE: A184N — KALMAR SOLUTIONS AB (SWE)
SPECIFICATIONS
Part Number21522151-178
NSN5330-01-433-0510
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21522151-178 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
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
2879426-801 ITEM 019Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1877803-801 ITEM 058Same 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 21522151-178?
21522151-178 is a SEAL,PLAIN.
What parts can replace 21522151-178?
There are 2 known substitutes for 21522151-178: 2879426-801 ITEM 019, 1877803-801 ITEM 058. Substitute compatibility should be verified for your specific system.
What is the NSN for 21522151-178?
21522151-178 is cataloged in the U.S. Government catalog under NSN 5330-01-433-0510. This indicates validated use in U.S. government and defense supply chains.
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