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S1620-61704-1 — LEAF,BUTT HINGE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S1620-61704-1: LEAF,BUTT HINGE.

The LEAF,BUTT HINGE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5086 OVERALL, hinge_pin: NOT INCLUDED, knuckle_type: FRICTION, knuckle_length: 0.498 INCHES NOMINAL IN, overall_length: 3.000 INCHES NOMINAL IN, performance_type: LIGHT DUTY. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-326-3435, 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
S1620-61704-1
NSN: 5340-00-326-3435
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5086 OVERALL
hinge_pinNOT INCLUDED
knuckle_typeFRICTION
knuckle_length0.498 INCHES NOMINAL IN
overall_length3.000 INCHES NOMINAL IN
knuckle_quantity2
performance_typeLIGHT DUTY
style_designatorBUTT STAGGERED HOLES
surface_treatmentANODIZE OVERALL
material_thickness0.188 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
mounting_hole_diameter0.191 INCHES NOMINAL IN
NSN5340-00-326-3435
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S1620-61704-1 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: 4
•
REVERSIBLE FEATURE: NOT INCLUDED
•
KNUCKLE INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTT STAGGERED HOLES
•
MOUNTING HOLE DIAMETER: 0.191 INCHES NOMINAL IN
•
PIN CENTER TO BODY EDGE DISTANCE: 2.000 INCHES NOMINAL IN
•
HINGE PIN: NOT INCLUDED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY4
REVERSIBLE FEATURENOT INCLUDED
KNUCKLE INSIDE DIAMETER0.312 INCHES NOMINAL IN
STYLE DESIGNATORBUTT STAGGERED HOLES
MOUNTING HOLE DIAMETER0.191 INCHES NOMINAL IN
OVERALL LENGTH3.000 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE2.000 INCHES NOMINAL IN
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.188 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH1.406 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1620-61704-1?
S1620-61704-1 is a LEAF,BUTT HINGE.
What is the NSN for S1620-61704-1?
S1620-61704-1 is cataloged in the U.S. Government catalog under NSN 5340-00-326-3435. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.