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QR0181 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

QR0181: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER SYNTHETIC OVERALL, construction: SOLID, style_designator: CIRCULAR, aperture_diameter: 16.421 INCHES NOMINAL IN, fabrication_method: SOLID, cross-sectional_width: 0.565 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-404-8985, 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
QR0181
NSN: 5330-00-404-8985
FSC: 5330 — Packing and Gasket Materials
CAGE: 3E191 — RAULAND-BORG CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
constructionSOLID
style_designatorCIRCULAR
aperture_diameter16.421 INCHES NOMINAL IN
fabrication_methodSOLID
cross-sectional_width0.565 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
cross-sectional_height0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleHOLLOW BULB
cross_section_inside_diameter0.075 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
material_document_and_classificationASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-404-8985
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: QR0181 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 THICKNESS: 0.062 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
CROSS-SECTIONAL WIDTH: 0.565 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW BULB
•
APERTURE DIAMETER: 16.421 INCHES NOMINAL IN
•
CROSS SECTION INSIDE DIAMETER: 0.075 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.230 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
CROSS-SECTIONAL WIDTH0.565 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULB
APERTURE DIAMETER16.421 INCHES NOMINAL IN
CROSS SECTION INSIDE DIAMETER0.075 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC OVERALL
FABRICATION METHODSOLID
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
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is QR0181?
QR0181 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for QR0181?
QR0181 is cataloged in the U.S. Government catalog under NSN 5330-00-404-8985. 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.