The Washer,lock, cataloged under National Stock Number 5310-01-103-5576, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-103-5576 |
| Primary Part Number | 2-1174-144 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch |
| Status | ACTIVE |
| Style Designator | FLAT INTERNAL TEETH |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material Thickness | 0.022 INCHES NOMINAL IN |
| Material | STEEL COMP 410 OVERALL |
| Hole Diameter | 0.506 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 |
|---|---|
| 2-1174-144 PRIMARY | Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA) |
| 43708973-906 | Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik (DEU) |
NSN 5310-01-103-5576 is a Washer,lock, manufactured by Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-103-5576 has 2 manufacturer part numbers on file: 2-1174-144 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 43708973-906 (Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik).
Key specifications for 2-1174-144: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.625 INCHES NOMINAL IN; Material Thickness: 0.022 INCHES NOMINAL IN; Material: STEEL COMP 410 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.