The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-273-6963, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-273-6963 |
| Primary Part Number | NB21872423 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| End Diameter | 1.1880 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| NB21872423 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 218-724-23 | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
| N-759 PC 11 | 5/9 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 5340-01-273-6963 is a Seat,helical Compression Spring, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-273-6963 has 1 manufacturer part number on file: NB21872423 (Leslie Controls, Inc. Dba Leslie Controls Inc).
Key specifications for NB21872423: End Diameter: 1.1880 INCHES NOMINAL IN; Design Type: SOLID; Material: COPPER ALLOY. 3 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.