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B311055 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B311055: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SPRING, seal_width: 0.688 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 11.000 INCHES NOMINAL IN, accommodated_shaft_diameter: 9.500 INCHES NOMINAL IN, cross-sectional_shape_style: SINGLE LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-786-5194, 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
B311055
NSN: 5330-00-786-5194
FSC: 5330 — Packing and Gasket Materials
CAGE: 16603 — CONTROL FLOW, INC. DBA WESTECH HEAVY MACHINERY DIVISION DIV WESTECH HEAVY MACHINERY DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SPRING
seal_width0.688 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter11.000 INCHES NOMINAL IN
accommodated_shaft_diameter9.500 INCHES NOMINAL IN
cross-sectional_shape_styleSINGLE LIP
NSN5330-00-786-5194
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B311055 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
•
SEAL WIDTH: 0.688 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 11.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
ACCOMMODATED SHAFT DIAMETER: 9.500 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING SPRING
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.688 INCHES NOMINAL IN
HOUSING BORE DIAMETER11.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER9.500 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING SPRING
CONSTRUCTIONSOLID
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
10538 LPD H1/L5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
H1-L5 10538 LPDReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 B311055?
B311055 is a SEAL,PLAIN.
What parts can replace B311055?
There are 2 known substitutes for B311055: 10538 LPD H1/L5, H1-L5 10538 LPD. Substitute compatibility should be verified for your specific system.
What is the NSN for B311055?
B311055 is cataloged in the U.S. Government catalog under NSN 5330-00-786-5194. This indicates validated use in U.S. government and defense supply chains.
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