The Washer,finishing, cataloged under National Stock Number 5310-01-581-5661, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pilatus Aircraft Ltd. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-581-5661 |
| Primary Part Number | 938.82.12.202 |
| Item Name | Washer,finishing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pilatus Aircraft Ltd |
| Status | ACTIVE |
| Style Designator | FINISHING |
| Material Document and Classification | STEEL A-286,UNS S66286 NATIONAL SPEC SINGLE MATERIAL RESPONSE BODY |
| Outside Diameter | 14.2 MILLIMETERS NOMINAL MM |
| Material Thickness | 0.3 MILLIMETERS NOMINAL MM |
| Recess Diameter | 8.4 MILLIMETERS NOMINAL MM |
| Color | GREEN SEALING ELEMENT |
| Surface Treatment | PASSIVATE BODY |
| Material | IRON ALLOY 660 BODY |
| Material | GLUE SEALING ELEMENT |
| Hole Diameter | 4.2 MILLIMETERS NOMINAL MM |
| Recess Angle | 100.0 DEGREES NOMINAL |
| 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 |
|---|---|
| 938.82.12.202 | Pilatus Aircraft Ltd (CHE) |
| Reference | Meaning |
|---|---|
| SL6124-08SP2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-581-5661 is a Washer,finishing, manufactured by Pilatus Aircraft Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-581-5661 has 1 manufacturer part number on file: 938.82.12.202 (Pilatus Aircraft Ltd).
Key specifications for 938.82.12.202: Overall Height: 2.0 MILLIMETERS NOMINAL MM; Style Designator: FINISHING; Material Document and Classification: STEEL A-286,UNS S66286 NATIONAL SPEC SINGLE MATERIAL RESPONSE BODY; Outside Diameter: 14.2 MILLIMETERS NOMINAL MM. 11 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.