The Leaf,butt Hinge, cataloged under National Stock Number 5340-00-444-3300, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-444-3300 |
| Primary Part Number | 1128BM42021-15 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Pin Diameter | 0.125 INCHES NOMINAL IN |
| Mounting Hole Quantity | 38 |
| Reversible Feature | NOT INCLUDED |
| Mounting Hole Diameter | 0.900 INCHES NOMINAL IN |
| Pin Center to Body Edge Distance | 4.000 INCHES NOMINAL IN |
| Hinge Pin | NOT INCLUDED |
| Material Thickness | 0.180 INCHES NOMINAL IN |
| Knuckle Quantity | 6 |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Knuckle Type | FRICTION |
| Performance Type | NOT RATED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 1128BM42021-15 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128BM42021-15 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-00-444-3300 is a Leaf,butt Hinge, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-444-3300 has 1 manufacturer part number on file: 1128BM42021-15 (Northrop Grumman Systems Corporation).
Key specifications for 1128BM42021-15: Pin Diameter: 0.125 INCHES NOMINAL IN; Mounting Hole Quantity: 38; Reversible Feature: NOT INCLUDED; Mounting Hole Diameter: 0.900 INCHES NOMINAL IN. 12 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.
NSN 5340-00-444-3300 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.