The Ring,retaining, cataloged under National Stock Number 5325-01-475-0141, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Mag Instrument, Inc. Dba Mag Instrument Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-475-0141 |
| Primary Part Number | 201-000-157 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Mag Instrument, Inc. Dba Mag Instrument Inc |
| Status | ACTIVE |
| Outside Diameter | 2.250 INCHES NOMINAL IN |
| Specification/standard Data | 1G3+5-281307 MANUFACTURERS SPECIFICATION CONTROL |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | ALUMINUM |
| 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 |
|---|---|
| 201-000-157 PRIMARY | Mag Instrument, Inc. Dba Mag Instrument Inc (USA) |
| Reference | Meaning |
|---|---|
| 28130700 | 7/2 Vendor item drawing reference Ge Aviation Systems Llc |
| 28130700 | 7/9 Vendor item drawing reference Smiths Industries Aerospace and Defense Systems Inc /siads/ Signal Processing Systems Div |
NSN 5325-01-475-0141 is a Ring,retaining, manufactured by Mag Instrument, Inc. Dba Mag Instrument Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-475-0141 has 1 manufacturer part number on file: 201-000-157 (Mag Instrument, Inc. Dba Mag Instrument Inc).
Key specifications for 201-000-157: Outside Diameter: 2.250 INCHES NOMINAL IN; Specification/standard Data: 1G3+5-281307 MANUFACTURERS SPECIFICATION CONTROL; Casehardening Indicator: NOT CASEHARDENED; Special Features: WIDTH 11/16 INCHES IN. 4 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.