The Leaf,butt Hinge, cataloged under National Stock Number 5340-00-326-3435, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-326-3435 |
| Primary Part Number | S1620-61704-1 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| 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 |
| Material Thickness | 0.188 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 1.406 INCHES NOMINAL IN |
| Knuckle Quantity | 2 |
| Knuckle Length | 0.498 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 5086 OVERALL |
| Knuckle Type | FRICTION |
| Leaf Outer Edge to Hole Center Vertical Distance | 0.375 INCHES NOMINAL IN |
| Performance Type | LIGHT DUTY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| S1620-61704-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5340-00-326-3435 is a Leaf,butt Hinge, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-326-3435 has 1 manufacturer part number on file: S1620-61704-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S1620-61704-1: Mounting Hole Quantity: 4; Reversible Feature: NOT INCLUDED; Knuckle Inside Diameter: 0.312 INCHES NOMINAL IN; Style Designator: BUTT STAGGERED HOLES. 16 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.