The Hinge,butt, cataloged under National Stock Number 5340-01-521-3502, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-521-3502 |
| Primary Part Number | AA55590-16C |
| Item Name | Hinge,butt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Pin Diameter | 0.089 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN |
| Reversible Feature | NOT INCLUDED |
| Style Designator | BUTT |
| Pin Center to Body Edge Distance | 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN |
| Hinge Mounting Type | FULL SURFACE |
| Material Thickness | 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN |
| Pin Removability | REMOVABLE |
| Knuckle Quantity | 115 |
| Material | UNABLE TO DECODE |
| Rising Pin | NOT INCLUDED |
| 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 |
| Part Number | Manufacturer |
|---|---|
| AA55590-16C | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A31U18031-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| A31U18031 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| A-A-55590 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| MS35822-16C | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-521-3502 is a Hinge,butt, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-521-3502 has 1 manufacturer part number on file: AA55590-16C (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
Key specifications for AA55590-16C: Pin Diameter: 0.089 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN; Reversible Feature: NOT INCLUDED; Style Designator: BUTT; Overall Length: 71.970 INCHES MINIMUM AND 72.030 INCHES MAXIMUM 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.
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.