The Washer,finishing, cataloged under National Stock Number 5310-01-310-4601, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Nyltite Corp of America. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-310-4601 |
| Primary Part Number | 31W |
| Item Name | Washer,finishing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Nyltite Corp of America |
| Status | ACTIVE |
| Material Document and Classification | L--P-410,Y/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.435 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Material | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL |
| Hole Diameter | 0.312 INCHES MINIMUM AND 0.320 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 | X |
| Part Number | Manufacturer |
|---|---|
| 31W | Nyltite Corp of America (USA) |
| Reference | Meaning |
|---|---|
| 13215E3857-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-310-4601 is a Washer,finishing, manufactured by Nyltite Corp of America, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-310-4601 has 1 manufacturer part number on file: 31W (Nyltite Corp of America).
Key specifications for 31W: Material Document and Classification: L--P-410,Y/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.435 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN; Material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL. 5 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.