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140387 — BRAKE DRUM

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

140387: BRAKE DRUM.

The BRAKE DRUM is a the manufacturer industrial component. Key specifications include material: IRON CAST OVERALL, cooling_fin: INCLUDED, balancing_pad: NOT INCLUDED, overall_width: 6.430 INCHES NOMINAL IN, oil_drain_hole: NOT INCLUDED, adjustment_hole: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-161-9279, 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
140387
NSN: 5330-00-161-9279
NIINs: 001619279, 011482914
FSC: 5330 — Packing and Gasket Materials
CAGE: 21877 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
cooling_finINCLUDED
balancing_padNOT INCLUDED
overall_width6.430 INCHES NOMINAL IN
oil_drain_holeNOT INCLUDED
adjustment_holeNOT INCLUDED
inspection_holeNOT INCLUDED
center_hole_diameter4.595 INCHES MINIMUM AND 4.598 INCHES MAXIMUM IN
braking_surface_width3.840 INCHES NOMINAL IN
mounting_hole_spacingEQUALLY SPACED ON 6.500 IN. BOLT CIRCLE IN
mounting_hole_diameter0.615 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN
mounting_hole_quantity8
NSN5330-00-161-9279
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 140387 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: 0.125 INCHES NOMINAL IN
•
HARDNESS RATING: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
2486741Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 140387?
140387 is a BRAKE DRUM.
What parts can replace 140387?
There is 1 known substitute for 140387: 2486741. Substitute compatibility should be verified for your specific system.
What is the NSN for 140387?
140387 is cataloged in the U.S. Government catalog under NSN 5330-00-161-9279. This indicates validated use in U.S. government and defense supply chains.
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