The Ring,retaining, cataloged under National Stock Number 5325-00-958-1075, 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. Government technical data includes 9 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-958-1075 |
| Primary Part Number | SF10780-008 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | JAN-S-1160 GRADE 1,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 4.500 INCHES MINIMUM AND 4.535 INCHES MAXIMUM IN |
| Major Thickness | 0.107 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Inside Diameter | 3.876 INCHES MINIMUM AND 3.911 INCHES MAXIMUM IN |
| Casehardening Indicator | CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Material | STEEL |
| 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 |
|---|---|
| SF10780-008 | Circor Pumps North America Llc (USA) |
| PP028Z9468 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| PP028Z9468 | 5/9 Secondary reference Siemens Energy, Inc. |
| RRT425 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-958-1075 is a Ring,retaining, manufactured by Circor Pumps North America Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-958-1075 has 2 manufacturer part numbers on file: SF10780-008 (Circor Pumps North America Llc), PP028Z9468 (Circor Pumps North America Llc).
Key specifications for SF10780-008: Usage Design: INTERNAL; Material Document and Classification: JAN-S-1160 GRADE 1,TYPE A MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 4.500 INCHES MINIMUM AND 4.535 INCHES MAXIMUM IN. 9 specifications are documented in the U.S. Government catalog.
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.