The Ring,retaining, cataloged under National Stock Number 5325-00-468-0822, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5325-00-468-0822 |
| Primary Part Number | 2R304REVAPC16 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 3.750 INCHES NOMINAL IN |
| Major Thickness | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Inside Diameter | 3.625 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | IRON CAST |
| 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 |
|---|---|
| 2R304REVAPC16 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| 2R384REVAPC25 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| 2R384REVAPC16 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| 2R417REVAPC25 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| 2R417REVAPC16 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| Reference | Meaning |
|---|---|
| 4901-3243985REVAPC16 | 3/2 Design control — primary reference U.S. Government activity |
| 4901-3243985REVAPC25 | 3/2 Design control — primary reference U.S. Government activity |
| 4901-3243986REVAPC25 | 3/2 Design control — primary reference U.S. Government activity |
| 4901-3243986REVAPC16 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-468-0822 is a Ring,retaining, manufactured by Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-468-0822 has 5 manufacturer part numbers on file: 2R304REVAPC16 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R384REVAPC25 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R384REVAPC16 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R417REVAPC25 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R417REVAPC16 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots).
Key specifications for 2R304REVAPC16: Usage Design: INTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 3.750 INCHES NOMINAL IN; Major Thickness: 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM 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.