The Brace,corner, cataloged under National Stock Number 5340-01-101-5597, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-101-5597 |
| Primary Part Number | 21228-1 |
| Item Name | Brace,corner |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids |
| Status | ACTIVE |
| First Leg Hole Diameter | 0.094 INCHES NOMINAL IN |
| Second Leg Hole Diameter | 0.094 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE |
| Second Leg Width | 0.190 INCHES NOMINAL IN |
| Second Leg Length | 0.790 INCHES NOMINAL IN |
| First Leg Hole Arrangement Style | ONE HOLE |
| Style Designator | ANGLE |
| First Leg Style | SQUARE |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| First Leg Length | 0.940 INCHES NOMINAL IN |
| First Leg Width | 0.190 INCHES NOMINAL IN |
| Second Leg Style | SQUARE |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 2024 |
| Second Leg Hole Arrangement Style | ONE HOLE |
| 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 |
|---|---|
| 21228-1 PRIMARY | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA) |
| Reference | Meaning |
|---|---|
| A21228-1 | 5/9 Secondary reference Smiths Aerospace, Inc., Electronic Systems-Grand Rapids |
NSN 5340-01-101-5597 is a Brace,corner, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-101-5597 has 1 manufacturer part number on file: 21228-1 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-237-0217, 5998-01-560-0563. Verify interchangeability with system specifications before substitution.
Key specifications for 21228-1: First Leg Hole Diameter: 0.094 INCHES NOMINAL IN; Second Leg Hole Diameter: 0.094 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE; Second Leg Width: 0.190 INCHES NOMINAL IN. 15 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.