The Washer,flat, cataloged under National Stock Number 5310-01-586-3425, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Grainger Div of W W Grainger Inc. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-586-3425 |
| Primary Part Number | 6ZA27 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Grainger Div of W W Grainger Inc |
| Status | ACTIVE |
| Overall Diameter | 1.313 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.688 INCHES NOMINAL IN |
| Thickness | 0.122 INCHES MINIMUM AND 0.177 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 |
|---|---|
| 6ZA27 PRIMARY | Grainger Div of W W Grainger Inc (USA) |
NSN 5310-01-586-3425 is a Washer,flat, manufactured by Grainger Div of W W Grainger Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-586-3425 has 1 manufacturer part number on file: 6ZA27 (Grainger Div of W W Grainger Inc).
Key specifications for 6ZA27: Overall Diameter: 1.313 INCHES NOMINAL IN; Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Special Features: USED FOR STRUCTURAL LEVELING; MEETS/EXCEEDS A325 AND A490 BOLTS; FINISH: HOT DIPPED GALVANIZED. 8 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.