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Technical Data Sheet
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BR640-5 — BR640-5

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

BR640-5: BR640-5.

The BR640-5 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-456-2087, 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
BR640-5
NSN: 5340-01-456-2087
FSC: 5340 — Hardware, Commercial
CAGE: 08730 — VEMALINE PRODUCTS INC DBA HANDLES UNLIMITED DIV HANDLES UNLIMITED (USA)
SPECIFICATIONS
Part NumberBR640-5
NSN5340-01-456-2087
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BR640-5 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
•
OVERALL DIAMETER: 0.187 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
OVERALL DIAMETER0.187 INCHES NOMINAL IN
MATERIALALUMINUM
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BR640-5?
BR640-5 is a BR640-5.
What is the NSN for BR640-5?
BR640-5 is cataloged in the U.S. Government catalog under NSN 5340-01-456-2087. This indicates validated use in U.S. government and defense supply chains.
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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.