The Leaf,butt Hinge, cataloged under National Stock Number 5340-01-178-9840, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-178-9840 |
| Primary Part Number | 16610259-004 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services |
| Status | ACTIVE |
| Reversible Feature | NOT INCLUDED |
| Knuckle Inside Diameter | 0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Supplementary Features | ALTERED FROM P/N MS20257-1 BY REMOVAL OF MIDDLE KNUCKLE |
| Style Designator | BUTT BLANK |
| Pin Center to Body Edge Distance | 0.368 INCHES MINIMUM AND 0.383 INCHES MAXIMUM IN |
| Hinge Mounting Type | FULL SURFACE |
| Hinge Pin | NOT INCLUDED |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| Knuckle Quantity | 6 |
| End Knuckle Length | 0.482 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN |
| Knuckle Length | 0.482 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 5052 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 |
| Part Number | Manufacturer |
|---|---|
| 16610259-004 PRIMARY | Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services (USA) |
| Reference | Meaning |
|---|---|
| 16610259-001 | 5/9 Secondary reference Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services |
NSN 5340-01-178-9840 is a Leaf,butt Hinge, manufactured by Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-178-9840 has 1 manufacturer part number on file: 16610259-004 (Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services).
Key specifications for 16610259-004: Reversible Feature: NOT INCLUDED; Knuckle Inside Diameter: 0.065 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Supplementary Features: ALTERED FROM P/N MS20257-1 BY REMOVAL OF MIDDLE KNUCKLE; Style Designator: BUTT BLANK. 14 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.