The Leaf,butt Hinge, cataloged under National Stock Number 5340-00-419-0899, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. 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 | 5340-00-419-0899 |
| Primary Part Number | 450A4400048-001 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Reversible Feature | NOT INCLUDED |
| Knuckle Inside Diameter | 0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Style Designator | BUTT BLANK |
| Pin Center to Body Edge Distance | 1.250 INCHES NOMINAL IN |
| Hinge Pin | NOT INCLUDED |
| Material Thickness | 0.150 INCHES NOMINAL IN |
| Knuckle Quantity | 3 |
| End Knuckle Length | 0.800 INCHES NOMINAL IN |
| Knuckle Length | 0.800 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE AND CHROMATE ZINC 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 |
|---|---|
| 450A4400048-001 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5340-00-419-0899 is a Leaf,butt Hinge, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-419-0899 has 1 manufacturer part number on file: 450A4400048-001 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 450A4400048-001: Reversible Feature: NOT INCLUDED; Knuckle Inside Diameter: 0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Style Designator: BUTT BLANK; Overall Length: 5.000 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.