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12978819 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12978819: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, hinge_pin: NOT INCLUDED, body_width: 3.62 INCHES NOMINAL IN, knuckle_type: FRICTION, performance_type: NOT RATED, style_designator: BUTT. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-613-3758, 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
12978819
NSN: 5340-01-613-3758
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
hinge_pinNOT INCLUDED
body_width3.62 INCHES NOMINAL IN
knuckle_typeFRICTION
knuckle_quantity1
performance_typeNOT RATED
style_designatorBUTT
material_thickness0.250 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
mounting_hole_diameter0.875 INCHES NOMINAL IN
mounting_hole_quantity2
pin_center_to_body_edge_distance3.625 INCHES NOMINAL IN
NSN5340-01-613-3758
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12978819 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
•
MOUNTING HOLE QUANTITY: 2
•
REVERSIBLE FEATURE: NOT INCLUDED
•
BODY WIDTH: 3.62 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTT
•
MOUNTING HOLE DIAMETER: 0.875 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 3.625 INCHES NOMINAL IN
•
HINGE PIN: NOT INCLUDED
•
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
REVERSIBLE FEATURENOT INCLUDED
BODY WIDTH3.62 INCHES NOMINAL IN
STYLE DESIGNATORBUTT
MOUNTING HOLE DIAMETER0.875 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE3.625 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
KNUCKLE QUANTITY1
PART NAME ASSIGNED BY CONTROLLING AGENCYHINGE,LEAF,STRAP
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 12978819?
12978819 is a LEAF,BUTT HINGE.
What is the NSN for 12978819?
12978819 is cataloged in the U.S. Government catalog under NSN 5340-01-613-3758. This indicates validated use in U.S. government and defense supply chains.
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