The Washer,split, cataloged under National Stock Number 5310-01-679-1812, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Richard Manno & Company Inc.. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-679-1812 |
| Primary Part Number | CW5 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Richard Manno & Company Inc. |
| Status | ACTIVE |
| Style Designator | SPLIT |
| Outside Diameter | 0.312 INCHES NOMINAL IN |
| Material Thickness | 0.012 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.166 INCHES NOMINAL IN |
| 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 |
|---|---|
| CW5 PRIMARY | Richard Manno & Company Inc. (USA) |
NSN 5310-01-679-1812 is a Washer,split, manufactured by Richard Manno & Company Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-679-1812 has 1 manufacturer part number on file: CW5 (Richard Manno & Company Inc.).
Key specifications for CW5: Style Designator: SPLIT; Outside Diameter: 0.312 INCHES NOMINAL IN; Material Thickness: 0.012 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: STAINLESS STEEL PANEL SCREW RETAINER W/PASSIVATED FINISH. 5 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.