The Washer,lock, cataloged under National Stock Number 5310-01-407-4764, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-407-4764 |
| Primary Part Number | 5012768A |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc |
| Status | ACTIVE |
| Hardness Rating | 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 425.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM |
| Style Designator | FLAT EXTERNAL TEETH |
| Outside Diameter | 4.30 MILLIMETERS MINIMUM AND 4.48 MILLIMETERS MAXIMUM MM |
| Material Thickness | 0.25 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Hole Diameter | 8.00 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 |
|---|---|
| 395.15.0101 | Vincorion Llc (USA) |
| 5012768A PRIMARY | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (USA) |
| DIN 6798-A4,3-FST | Din Deutsches Institut Fur Normung Ev (DEU) |
| Reference | Meaning |
|---|---|
| 152.269 | 5/9 Secondary reference Webasto Thermosystems Inc |
| 152.269 | 5/9 Secondary reference Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc |
NSN 5310-01-407-4764 is a Washer,lock, manufactured by Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-407-4764 has 3 manufacturer part numbers on file: 395.15.0101 (Vincorion Llc), 5012768A (Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc), DIN 6798-A4,3-FST (Din Deutsches Institut Fur Normung Ev).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-432-1556. Verify interchangeability with system specifications before substitution.
Key specifications for 5012768A: Hardness Rating: 350.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 425.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM; Style Designator: FLAT EXTERNAL TEETH; Outside Diameter: 4.30 MILLIMETERS MINIMUM AND 4.48 MILLIMETERS MAXIMUM MM; Material Thickness: 0.25 MILLIMETERS NOMINAL MM. 6 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.