The Leaf,butt Hinge, cataloged under National Stock Number 5340-01-438-3814, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 5340-01-438-3814 |
| Primary Part Number | 3305AS271-1 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| 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 |
|---|---|
| 3305AS271-1 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| 3305AS271-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-438-3814 is a Leaf,butt Hinge, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-438-3814 has 2 manufacturer part numbers on file: 3305AS271-1 (Hydraulics International, Inc. Dba Hydraulics International Inc), 3305AS271-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-470-6187. Verify interchangeability with system specifications before substitution.
Key specifications for 3305AS271-1: Overall Length: 13.670 INCHES NOMINAL IN; Surface Treatment: ANODIZE OVERALL; Material: ALUMINUM ALLOY 6061 OVERALL. 2 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.