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B71334-8 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B71334-8: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, minor_width: 0.209 INCHES NOMINAL0.209 INCHES NOMINAL IN, temp_rating: -40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 194.0 FAHRENHEIT194.0 FAHRENHEIT DEGF, minor_height: 0.142 INCHES MINIMUM AND 0.142 INCHES MINIMUM AND 0.154 INCHES MAXIMUM0.154 INCHES MAXIMUM IN, hardness_rating: 65.0 SHORE DUROMETER A MAXIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL, style_designator: CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-379-0719, 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
B71334-8
NSN: 5330-01-379-0719
FSC: 5330 — Packing and Gasket Materials
CAGE: 28666 — THYSSENKRUPP ROTHE ERDE USA INC. (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
minor_width0.209 INCHES NOMINAL0.209 INCHES NOMINAL IN
temp_rating-40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 194.0 FAHRENHEIT194.0 FAHRENHEIT DEGF
minor_height0.142 INCHES MINIMUM AND 0.142 INCHES MINIMUM AND 0.154 INCHES MAXIMUM0.154 INCHES MAXIMUM IN
hardness_rating65.0 SHORE DUROMETER A MAXIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorCIRCULAR
aperture_diameter58.642 INCHES NOMINAL58.642 INCHES NOMINAL IN
cross-sectional_width0.413 INCHES MINIMUM AND 0.413 INCHES MINIMUM AND 0.425 INCHES MAXIMUM0.425 INCHES MAXIMUM IN
cross-sectional_height0.334 INCHES MINIMUM AND 0.334 INCHES MINIMUM AND 0.362 INCHES MAXIMUM0.362 INCHES MAXIMUM IN
NSN5330-01-379-0719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B71334-8 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
•
TEMP RATING: -40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 194.0 FAHRENHEIT194.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.334 INCHES MINIMUM AND 0.334 INCHES MINIMUM AND 0.362 INCHES MAXIMUM0.362 INCHES MAXIMUM IN
•
CROSS-SECTIONAL WIDTH: 0.413 INCHES MINIMUM AND 0.413 INCHES MINIMUM AND 0.425 INCHES MAXIMUM0.425 INCHES MAXIMUM IN
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MAXIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MINOR HEIGHT: 0.142 INCHES MINIMUM AND 0.142 INCHES MINIMUM AND 0.154 INCHES MAXIMUM0.154 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
APERTURE DIAMETER: 58.642 INCHES NOMINAL58.642 INCHES NOMINAL IN
•
MINOR WIDTH: 0.209 INCHES NOMINAL0.209 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TEMP RATING-40.0 FAHRENHEIT AND -40.0 FAHRENHEIT AND 194.0 FAHRENHEIT194.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.334 INCHES MINIMUM AND 0.334 INCHES MINIMUM AND 0.362 INCHES MAXIMUM0.362 INCHES MAXIMUM IN
CROSS-SECTIONAL WIDTH0.413 INCHES MINIMUM AND 0.413 INCHES MINIMUM AND 0.425 INCHES MAXIMUM0.425 INCHES MAXIMUM IN
HARDNESS RATING65.0 SHORE DUROMETER A MAXIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
MINOR HEIGHT0.142 INCHES MINIMUM AND 0.142 INCHES MINIMUM AND 0.154 INCHES MAXIMUM0.154 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER58.642 INCHES NOMINAL58.642 INCHES NOMINAL IN
MINOR WIDTH0.209 INCHES NOMINAL0.209 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
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
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B71334-8?
B71334-8 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for B71334-8?
B71334-8 is cataloged in the U.S. Government catalog under NSN 5330-01-379-0719. 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.