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68A321057-2019 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

68A321057-2019: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include hinge_pin: NOT INCLUDED, knuckle_type: FRICTION, knuckle_length: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN, overall_length: 13.345 INCHES MINIMUM AND 13.385 INCHES MAXIMUM IN, knuckle_quantity: 14, style_designator: BUTT BLANK. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-248-9938, 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
68A321057-2019
NSN: 5340-01-248-9938
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
hinge_pinNOT INCLUDED
knuckle_typeFRICTION
knuckle_length0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
overall_length13.345 INCHES MINIMUM AND 13.385 INCHES MAXIMUM IN
knuckle_quantity14
style_designatorBUTT BLANK
end_knuckle_length0.365 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
pin_center_to_body_edge_distance1.540 INCHES NOMINAL IN
NSN5340-01-248-9938
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 68A321057-2019 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
•
REVERSIBLE FEATURE: NOT INCLUDED
•
STYLE DESIGNATOR: BUTT BLANK
•
PIN CENTER TO BODY EDGE DISTANCE: 1.540 INCHES NOMINAL IN
•
HINGE PIN: NOT INCLUDED
•
KNUCKLE QUANTITY: 14
•
END KNUCKLE LENGTH: 0.365 INCHES NOMINAL IN
•
KNUCKLE LENGTH: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
REVERSIBLE FEATURENOT INCLUDED
STYLE DESIGNATORBUTT BLANK
OVERALL LENGTH13.345 INCHES MINIMUM AND 13.385 INCHES MAXIMUM IN
PIN CENTER TO BODY EDGE DISTANCE1.540 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
KNUCKLE QUANTITY14
END KNUCKLE LENGTH0.365 INCHES NOMINAL IN
KNUCKLE LENGTH0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
KNUCKLE TYPEFRICTION
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68A321057-2019?
68A321057-2019 is a LEAF,BUTT HINGE.
What is the NSN for 68A321057-2019?
68A321057-2019 is cataloged in the U.S. Government catalog under NSN 5340-01-248-9938. This indicates validated use in U.S. government and defense supply chains.
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