The Washer,key, cataloged under National Stock Number 5310-01-056-2181, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-056-2181 |
| Primary Part Number | 2006019-5 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Internal Straight Key Width | 0.230 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.660 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Criticality Code Justification | FEAT |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Material Thickness | 0.100 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4140 OR STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 1.501 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 2006019-5 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2006019-5 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
| 5310PL0784794 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-056-2181 is a Washer,key, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-056-2181 has 1 manufacturer part number on file: 2006019-5 (Goodrich Corporation).
Key specifications for 2006019-5: Internal Straight Key Width: 0.230 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.660 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Criticality Code Justification: FEAT. 12 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.