The Leaf,butt Hinge, cataloged under National Stock Number 5340-01-251-9423, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 13 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 | 5340-01-251-9423 |
| Primary Part Number | 68A731659-2003 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Reversible Feature | NOT INCLUDED |
| Knuckle Inside Diameter | 0.094 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Style Designator | BUTT BLANK |
| Pin Center to Body Edge Distance | 0.830 INCHES NOMINAL IN |
| Hinge Mounting Type | FULL SURFACE |
| Hinge Pin | NOT INCLUDED |
| Material Thickness | 0.094 INCHES NOMINAL IN |
| Knuckle Quantity | 6 |
| Knuckle Length | 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Knuckle Type | FRICTION |
| Performance Type | NOT RATED |
| 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 |
|---|---|
| 68A731659-2003 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5340-01-251-9423 is a Leaf,butt Hinge, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-251-9423 has 1 manufacturer part number on file: 68A731659-2003 (The Boeing Company Div Defense).
Key specifications for 68A731659-2003: Reversible Feature: NOT INCLUDED; Knuckle Inside Diameter: 0.094 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN; Style Designator: BUTT BLANK; Overall Length: 5.460 INCHES NOMINAL IN. 13 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.