The Ring,retaining, cataloged under National Stock Number 5325-01-138-4647, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 2 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-138-4647 |
| Primary Part Number | 1R68330-3 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 1R68330-3 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 1R68330-3 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| R68330T3 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| R68330-3 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| R68330-3 | 5/9 Secondary reference U.S. Government activity |
| R68330-3 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 33910381 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| G8787PC4 | 5/9 Secondary reference U.S. Government activity |
| R68330-3-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-138-4647 is a Ring,retaining, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-138-4647 has 1 manufacturer part number on file: 1R68330-3 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for 1R68330-3: Outside Diameter: 0.500 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SHOCK KIT, 1/2" BRONZE RING O-RING SET; Material: COPPER ALLOY. 2 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.