The Ring,retaining, cataloged under National Stock Number 5325-01-265-6353, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Siemens Energy, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Circor Pumps North America Llc (CAGE 59180); Siemens Energy, Inc. (CAGE 16712) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-265-6353 |
| Primary Part Number | PT 028KA-62 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Siemens Energy, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| SG-4600 GR.1 PIECE 21 | Circor Pumps North America Llc (USA) |
| PT 028KA-62 PRIMARY | Siemens Energy, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SG-4600 GR.1 PIECE 21 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 5325-01-265-6353 is a Ring,retaining, manufactured by Siemens Energy, Inc., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-265-6353 has 2 manufacturer part numbers on file: SG-4600 GR.1 PIECE 21 (Circor Pumps North America Llc), PT 028KA-62 (Siemens Energy, Inc.).
No hazard code in the DLA record (HMIC N). 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.