PartsTable
Technical Data Sheet
HS4450 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, shank_length: 0.100 INCHES NOMINAL IN, overall_height: 0.190 INCHES NOMINAL IN, shank_diameter: 0.280 INCHES NOMINAL IN, style_designator: FLANGED, end_item_identification: W/S: HELICOPTER, APACHE AH-64. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-194-9443, 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
HS4450
NSN: 5340-01-194-9443
FSC: 5340
CAGE: 02731 — MCDONNELL DOUGLAS HELICOPTER CO INC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
shank_length0.100 INCHES NOMINAL IN
overall_height0.190 INCHES NOMINAL IN
shank_diameter0.280 INCHES NOMINAL IN
style_designatorFLANGED
end_item_identificationW/S: HELICOPTER, APACHE AH-64
material_hardness_rating50.0 SHORE DUROMETER A NOMINAL
outside/top_flange_diameter0.310 INCHES NOMINAL IN
NSN5340-01-194-9443
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HS4450 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
MATERIAL: RUBBER CHLOROPRENE CLASS CR
MATERIAL HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL
STYLE DESIGNATOR: FLANGED
SHANK LENGTH: 0.100 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER: 0.310 INCHES NOMINAL IN
SHANK DIAMETER: 0.280 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER CHLOROPRENE CLASS CR
OVERALL HEIGHT0.190 INCHES NOMINAL IN
MATERIAL HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL
END ITEM IDENTIFICATIONW/S: HELICOPTER, APACHE AH-64
STYLE DESIGNATORFLANGED
SHANK LENGTH0.100 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.310 INCHES NOMINAL IN
SHANK DIAMETER0.280 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
997Upgraded Successor
successor cross-reference
successor
900Upgraded Successor
successor cross-reference
successor
HS4450-10Upgraded Successor
successor cross-reference
successor
4076Upgraded Successor
successor cross-reference
successor
115-960Interchangeable
interchangeable cross-reference
interchangeable
U12390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HS4450?
HS4450 is a BUMPER.
What parts can replace HS4450?
There are 11 known substitutes for HS4450: 997, 900, HS4450-10 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HS4450?
HS4450 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-194-9443. This indicates validated use in U.S. government and defense supply chains.
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