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NAS1898-H — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

NAS1898-H: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, construction: SOLIDSOLID, overall_length: 12.594 INCHES NOMINAL12.594 INCHES NOMINAL IN, cross-sectional_width: 6.500 INCHES NOMINAL6.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-217-0751, 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
NAS1898-H
NSN: 5330-01-217-0751
FSC: 5330 — Packing and Gasket Materials
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
constructionSOLIDSOLID
overall_length12.594 INCHES NOMINAL12.594 INCHES NOMINAL IN
cross-sectional_width6.500 INCHES NOMINAL6.500 INCHES NOMINAL IN
NSN5330-01-217-0751
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS1898-H 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
•
CROSS-SECTIONAL WIDTH: 6.500 INCHES NOMINAL6.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
•
CONSTRUCTION: SOLIDSOLID
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL WIDTH6.500 INCHES NOMINAL6.500 INCHES NOMINAL IN
OVERALL LENGTH12.594 INCHES NOMINAL12.594 INCHES NOMINAL IN
MATERIALRUBBER SILICONE CLASS Q OVERALL
CONSTRUCTIONSOLIDSOLID
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS1898-H?
NAS1898-H is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for NAS1898-H?
NAS1898-H is cataloged in the U.S. Government catalog under NSN 5330-01-217-0751. 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.