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B1440 — STBD CONTROL PANEL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B1440: STBD CONTROL PANEL.

The STBD CONTROL PANEL is a the manufacturer industrial component. Key specifications include material: CORK AND RUBBER SYNTHETIC OVERALL, outside_diameter: 1.190 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN, special_features: ONE 0.120 IN. DIA HOLE LOCATED ON THE BEARING SURFACE IN, style_designator: CIRCULAR, aperture_diameter: 0.781 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN, cross-sectional_thickness: 0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 5330-00-239-0658, 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
B1440
NSN: 5330-00-239-0658
NIINs: 002390658, 003636979, 013493543, 015797209
FSC: 5330 — Packing and Gasket Materials
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialCORK AND RUBBER SYNTHETIC OVERALL
outside_diameter1.190 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN
special_featuresONE 0.120 IN. DIA HOLE LOCATED ON THE BEARING SURFACE IN
style_designatorCIRCULAR
aperture_diameter0.781 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
cross-sectional_thickness0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationAMS 3250 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-239-0658
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B1440 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: 0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 3250 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 1.190 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 0.781 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
•
MATERIAL: CORK AND RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3250 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER1.190 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN
APERTURE DIAMETER0.781 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
SPECIAL FEATURESONE 0.120 IN. DIA HOLE LOCATED ON THE BEARING SURFACE IN
MATERIALCORK AND RUBBER SYNTHETIC OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 B1440?
B1440 is a STBD CONTROL PANEL.
What is the NSN for B1440?
B1440 is cataloged in the U.S. Government catalog under NSN 5330-00-239-0658. 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.