The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-788-7598, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-788-7598 |
| Primary Part Number | 3351-28 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | SELECTED AND TESTED FOR USE ON ELECTROLYTIC OXYGEN-NITROGEN GENERATOR |
| 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 |
|---|---|
| 3351-28 | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
| 3351-9PC2 | Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA) |
| Reference | Meaning |
|---|---|
| 3351-28 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5340-00-788-7598 is a Seat,helical Compression Spring, manufactured by Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-788-7598 has 2 manufacturer part numbers on file: 3351-28 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 3351-9PC2 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives).
Key specifications for 3351-28: Reference Number Differentiating Characteristics: SELECTED AND TESTED FOR USE ON ELECTROLYTIC OXYGEN-NITROGEN GENERATOR. 1 specification is 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.