The Washer,lock, cataloged under National Stock Number 5310-01-055-1783, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Actuation Systems SAS. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-055-1783 |
| Primary Part Number | 416222-002 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Actuation Systems SAS |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-13924,CLASS 1,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | EXTERNAL TEETH |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.916 MILLIMETERS NOMINAL1.916 MILLIMETERS NOMINAL MM |
| Surface Treatment | OXIDE FILM OVERALL |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 1.494 MILLIMETERS NOMINAL1.494 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 |
|---|---|
| 416222-002 | Goodrich Actuation Systems SAS (FRA) |
| Reference | Meaning |
|---|---|
| SL61WTM40F | 3/2 Design control — primary reference U.S. Government activity |
| 416222-002 | 5/9 Secondary reference Lucas Aerospace Fms SAS (filiale De Lucas France Sa) |
| 416222-002 | 5/9 Secondary reference Lucas France Sa Div Aerospace France |
NSN 5310-01-055-1783 is a Washer,lock, manufactured by Goodrich Actuation Systems SAS, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-055-1783 has 1 manufacturer part number on file: 416222-002 (Goodrich Actuation Systems SAS).
Key specifications for 416222-002: Overall Height: 0.175 MILLIMETERS NOMINAL0.175 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: MIL-C-13924,CLASS 1,GRADE C MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: EXTERNAL TEETH; Material Document and Classification: MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 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.