The Leaf,butt Hinge, cataloged under National Stock Number 5340-01-122-2780, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-122-2780 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Reversible Feature | NOT INCLUDED |
| Knuckle Inside Diameter | 0.067 INCHES NOMINAL IN |
| Style Designator | BUTT BLANK |
| Material Document and Classification | QQ-A-270,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pin Center to Body Edge Distance | 0.830 INCHES NOMINAL IN |
| Hinge Mounting Type | FULL MORTISE |
| Hinge Pin | NOT INCLUDED |
| Material Thickness | 0.047 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN |
| Knuckle Quantity | 4 |
| Knuckle Length | 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 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 |
| Reference | Meaning |
|---|---|
| 4-10370-3 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 4-10370-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 5340-01-122-2780 is a Leaf,butt Hinge, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2950-01-336-6037. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-01-122-2780: Reversible Feature: NOT INCLUDED; Knuckle Inside Diameter: 0.067 INCHES NOMINAL IN; Style Designator: BUTT BLANK; Material Document and Classification: QQ-A-270,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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.