The Washer,key, cataloged under National Stock Number 5310-01-056-2180, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-056-2180 |
| Primary Part Number | 2006011-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Internal Straight Key Width | 0.238 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Distance From Centerline to Top of Internal Key | 0.885 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,CLASS 1,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Criticality Code Justification | FEAT |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.365 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN |
| Material Thickness | 0.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL COMP 4140 OVERALL |
| Internal Key Quantity | 1 |
| Hole Diameter | 2.005 INCHES MINIMUM AND 2.020 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 |
|---|---|
| 2006011-1 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0743587 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2006011-1 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-01-056-2180 is a Washer,key, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-056-2180 has 1 manufacturer part number on file: 2006011-1 (Goodrich Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-395-6953, 1450-01-674-1032. Verify interchangeability with system specifications before substitution.
Key specifications for 2006011-1: Internal Straight Key Width: 0.238 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.885 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,CLASS 1,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.