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L5780-5 — PULLEY,GROOVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

L5780-5: PULLEY,GROOVE.

The PULLEY,GROOVE is a the manufacturer industrial component. Key specifications include bearings: NOT INCLUDED, material: IRON CAST OVERALL, bore_type: TAPERED, face_width: 0.750 INCHES NOMINAL IN, bore_length: 1.730 INCHES NOMINAL IN, design_form: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-808-5865, 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
L5780-5
NSN: 5340-00-808-5865
NIINs: 008085865, 010813415
FSC: 5340 — Hardware, Commercial
CAGE: 21585 — FARR CO (USA)
SPECIFICATIONS
bearingsNOT INCLUDED
materialIRON CAST OVERALL
quantity1
bore_typeTAPERED
face_width0.750 INCHES NOMINAL IN
bore_length1.730 INCHES NOMINAL IN
design_formPLAIN
bore_featureINCLUDED
groove_depth0.690 INCHES NOMINAL IN
groove_shapeV
groove_width0.500 INCHES NOMINAL IN
keyway_width0.251 INCHES NOMINAL IN
NSN5340-00-808-5865
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L5780-5 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
•
STYLE DESIGNATOR: TWO PIECE
•
MATERIAL THICKNESS: 0.312 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 4.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORTWO PIECE
OVERALL WIDTH0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.312 INCHES NOMINAL IN
LOOP INSIDE DIAMETER4.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
9030499Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 L5780-5?
L5780-5 is a PULLEY,GROOVE.
What parts can replace L5780-5?
There is 1 known substitute for L5780-5: 9030499. Substitute compatibility should be verified for your specific system.
What is the NSN for L5780-5?
L5780-5 is cataloged in the U.S. Government catalog under NSN 5340-00-808-5865. This indicates validated use in U.S. government and defense supply chains.
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