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1656681-2 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1656681-2: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 BODY, hinge_pin: INCLUDED, knuckle_type: FRICTION, knuckle_length: 0.490 INCHES NOMINAL IN, overall_length: 0.950 INCHES NOMINAL IN, performance_type: NOT RATED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-211-4644, 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
1656681-2
NSN: 5340-01-211-4644
FSC: 5340 — Hardware, Commercial
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 BODY
hinge_pinINCLUDED
knuckle_typeFRICTION
knuckle_length0.490 INCHES NOMINAL IN
overall_length0.950 INCHES NOMINAL IN
knuckle_quantity1
performance_typeNOT RATED
special_featuresLEFT HAND; PIN CHAMFERED 0.060 IN.,45.0 DEGREES IN
style_designatorBUTT PARRALLEL HOLES END KNUCKLES
surface_treatmentPASSIVATE PIN
material_thickness0.062 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
NSN5340-01-211-4644
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1656681-2 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
•
KNUCKLE INSIDE DIAMETER: 0.180 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTT PARRALLEL HOLES END KNUCKLES
•
MOUNTING HOLE DIAMETER: 0.128 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 0.562 INCHES NOMINAL IN
•
HINGE PIN: INCLUDED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
REVERSIBLE FEATURENOT INCLUDED
KNUCKLE INSIDE DIAMETER0.180 INCHES NOMINAL IN
STYLE DESIGNATORBUTT PARRALLEL HOLES END KNUCKLES
MOUNTING HOLE DIAMETER0.128 INCHES NOMINAL IN
OVERALL LENGTH0.950 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE0.562 INCHES NOMINAL IN
HINGE PININCLUDED
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH0.562 INCHES NOMINAL IN
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 1656681-2?
1656681-2 is a LEAF,BUTT HINGE.
What is the NSN for 1656681-2?
1656681-2 is cataloged in the U.S. Government catalog under NSN 5340-01-211-4644. This indicates validated use in U.S. government and defense supply chains.
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