The Washer,lock, cataloged under National Stock Number 5310-01-340-4647, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Metric and Multistandard Components Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-340-4647 |
| Primary Part Number | DIN6798A2 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Metric and Multistandard Components Corp |
| Status | ACTIVE |
| Style Designator | SERRATED |
| Outside Diameter | 6.0 MILLIMETERS NOMINAL MM |
| Material Thickness | 0.4 MILLIMETERS NOMINAL MM |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 3.2 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| DIN6798A2 PRIMARY | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| DIN 6798 ST M3 | C/1 Advisory reference — outside the item-of-supply concept Metric and Multistandard Components Corp |
| DIN 6788 ST M3 | 5/9 Secondary reference Metric and Multistandard Components Corp |
NSN 5310-01-340-4647 is a Washer,lock, manufactured by Metric and Multistandard Components Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-340-4647 has 1 manufacturer part number on file: DIN6798A2 (Metric and Multistandard Components Corp).
Key specifications for DIN6798A2: Style Designator: SERRATED; Outside Diameter: 6.0 MILLIMETERS NOMINAL MM; Material Thickness: 0.4 MILLIMETERS NOMINAL MM; Material: STEEL CORROSION RESISTING OVERALL. 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.