The Ring,retaining, cataloged under National Stock Number 5325-01-280-7140, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Circor Pumps North America Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Circor Pumps North America Llc (CAGE 59180) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-280-7140 |
| Primary Part Number | PP028EA-832 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PP028EA-832 PRIMARY | Circor Pumps North America Llc (USA) |
| SG-4442 PIECE 8 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| PP-028BK/9468 | 5/9 Secondary reference Siemens Energy, Inc. |
| PP028BK9468 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| PRA-832 | 3/2 Design control — primary reference U.S. Government activity |
| SG-4442 PIECE 8 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 5325-01-280-7140 is a Ring,retaining, manufactured by Circor Pumps North America Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-280-7140 has 2 manufacturer part numbers on file: PP028EA-832 (Circor Pumps North America Llc), SG-4442 PIECE 8 (Circor Pumps North America Llc).
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.