The Leaf,butt Hinge, cataloged under National Stock Number 5340-01-063-6621, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Crestview Aerospace Llc Div Crestview Aerospace. Government technical data includes 8 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 | 5340-01-063-6621 |
| Primary Part Number | 50-20154-10 |
| Item Name | Leaf,butt Hinge |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Crestview Aerospace Llc Div Crestview Aerospace |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Reversible Feature | NOT INCLUDED |
| Material Document and Classification | QQ-S-741 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pin Center to Body Edge Distance | 2.860 INCHES NOMINAL IN |
| Hinge Pin | NOT INCLUDED |
| Knuckle Quantity | 2 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 50-20154-10 PRIMARY | Crestview Aerospace Llc Div Crestview Aerospace (USA) |
NSN 5340-01-063-6621 is a Leaf,butt Hinge, manufactured by Crestview Aerospace Llc Div Crestview Aerospace, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-063-6621 has 1 manufacturer part number on file: 50-20154-10 (Crestview Aerospace Llc Div Crestview Aerospace).
Key specifications for 50-20154-10: Mounting Hole Quantity: 2; Reversible Feature: NOT INCLUDED; Material Document and Classification: QQ-S-741 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 1.250 INCHES NOMINAL IN. 8 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.