The Washer,flat, cataloged under National Stock Number 5310-01-522-2779, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-522-2779 |
| Primary Part Number | ISO7089-8.4-300HV-ZY |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Overall Diameter | 15.570 MILLIMETERS MINIMUM AND 16.000 MILLIMETERS MAXIMUM MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 8.400 MILLIMETERS MINIMUM AND 8.620 MILLIMETERS MAXIMUM MM |
| Thickness | 1.600 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| ISO7089-8.4-300HV-ZY | International Organization for Standardization (iso) (CHE) |
| Reference | Meaning |
|---|---|
| DIN125-8.4-300HV-ZY | 5/9 Secondary reference Din Deutsches Institut Fur Normung Ev |
NSN 5310-01-522-2779 is a Washer,flat, manufactured by International Organization for Standardization (iso), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-522-2779 has 1 manufacturer part number on file: ISO7089-8.4-300HV-ZY (International Organization for Standardization (iso)).
Key specifications for ISO7089-8.4-300HV-ZY: Overall Diameter: 15.570 MILLIMETERS MINIMUM AND 16.000 MILLIMETERS MAXIMUM MM; Cross-Sectional Shape Style: RECTANGULAR; Special Features: HARDNESS CLASS IS 300HV; Peripheral Shape Style: ROUND. 6 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.