The Ring,retaining, cataloged under National Stock Number 5325-00-958-1073, 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 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5325-00-958-1073 |
| Primary Part Number | PP028KA-200 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Document and Classification | AISI C1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.081 INCHES NOMINAL IN |
| Inside Diameter | 1.809 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL |
| 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 |
|---|---|
| PP028KA-200 PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| PP028BD0200 | 5/9 Secondary reference Circor Pumps North America Llc |
| PP028BD0200 | 5/9 Secondary reference Siemens Energy, Inc. |
| PP-028BD/0200 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| PP028BC/9200 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5325-00-958-1073 is a Ring,retaining, manufactured by Circor Pumps North America Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-958-1073 has 1 manufacturer part number on file: PP028KA-200 (Circor Pumps North America Llc).
Key specifications for PP028KA-200: Usage Design: EXTERNAL; Material Document and Classification: AISI C1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1065 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.081 INCHES NOMINAL IN. 8 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.