The Washer,flat, cataloged under National Stock Number 5310-01-562-9723, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Critical Solutions International, Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-562-9723 |
| Primary Part Number | FD3576 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Critical Solutions International, Llc |
| Status | ACTIVE |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| 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 |
|---|---|
| FD3576 PRIMARY | Critical Solutions International, Llc (USA) |
| Reference | Meaning |
|---|---|
| 93744A210 | 5/1 Secondary reference Critical Solutions International, Llc |
NSN 5310-01-562-9723 is a Washer,flat, manufactured by Critical Solutions International, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-562-9723 has 1 manufacturer part number on file: FD3576 (Critical Solutions International, Llc).
Key specifications for FD3576: Special Features: SHAPE ROUND HOLE, FOR SCREW SIZE 3/4 INCHES. MATERIAL COPPER. PLAIN FINISH. INSIDE DIAMETER 0.812 INCHES. OUTSIDE DIAMETER 2 INCHES. MINIMUM THICKNESS 0.083 INCHES. MAXIMUM THICKNESS 0.103 INCHES IN; Material: COPPER OVERALL; Center Hole Shape Style: ROUND. 2 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.