The Washer,flat, cataloged under National Stock Number 5310-01-056-2185, 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 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-056-2185 |
| Primary Part Number | 2006408-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES ALL SURFACES |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.750 INCHES NOMINAL IN |
| Supplementary Features | ITEM IS NOT CSI BUT HAS CRITICAL FEATURE SUCH AS HEAT TREATMENT,SURFACE FINISH,OR MATERIAL TYPE AND SPECIAL INSPECTION REQUIREMENTS SUCH AS MAGNETIC PARTICLE INSPECTION OR FLUORESCENT PENETRANT INSPECTION |
| Criticality Code Justification | SUPP |
| Material Document and Classification | MIL-S-5626,COND E-4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4140 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.328 INCHES NOMINAL IN |
| Thickness | 0.125 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 2006408-1 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5310PL0743593 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2006408-1 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-01-056-2185 is a Washer,flat, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-056-2185 has 1 manufacturer part number on file: 2006408-1 (Goodrich Corporation).
Key specifications for 2006408-1: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.750 INCHES NOMINAL IN; Supplementary Features: ITEM IS NOT CSI BUT HAS CRITICAL FEATURE SUCH AS HEAT TREATMENT,SURFACE FINISH,OR MATERIAL TYPE AND SPECIAL INSPECTION REQUIREMENTS SUCH AS MAGNETIC PARTICLE INSPECTION OR FLUORESCENT PENETRANT INSPECTION. 13 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.