The Ring,retaining, cataloged under National Stock Number 5325-00-663-9158, 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 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-663-9158 |
| Primary Part Number | S438ALTA |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Major Thickness | 0.045 INCHES NOMINAL IN |
| Inside Diameter | 0.934 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| 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 |
|---|---|
| S438ALTA PRIMARY | Circor Pumps North America Llc (USA) |
| SG3462REVAPC32 PRIMARY | Circor Pumps North America Llc (USA) |
| SG3460REVAPC32 PRIMARY | Circor Pumps North America Llc (USA) |
| SG3459REVAPC16 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SG3460REVAPC32 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG3459REVAPC16 | 5/9 Secondary reference Siemens Energy, Inc. |
| 578-2100-1674656REVAPC32 | 3/2 Design control — primary reference U.S. Government activity |
| SG3462REVAPC32 | 5/9 Secondary reference Siemens Energy, Inc. |
| S438ALTA | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 5325-00-663-9158 is a Ring,retaining, manufactured by Circor Pumps North America Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-663-9158 has 4 manufacturer part numbers on file: S438ALTA (Circor Pumps North America Llc), SG3462REVAPC32 (Circor Pumps North America Llc), SG3460REVAPC32 (Circor Pumps North America Llc), SG3459REVAPC16 (Circor Pumps North America Llc).
Key specifications for S438ALTA: Usage Design: EXTERNAL; Cross-Sectional Shape Style: DOUBLE OVAL; Major Thickness: 0.045 INCHES NOMINAL IN; Inside Diameter: 0.934 INCHES NOMINAL IN. 6 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.