The Washer,flat, cataloged under National Stock Number 5310-01-710-7561, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-710-7561 |
| Primary Part Number | ISO7089-B13-140HV-A3P |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Overall Diameter | 2.48 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 75.0 ROCKWELL B MINIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Nondefinitive Spec/std Data | A GRADE |
| Specific Use | METRIC WASHERS MEET THE MAJORITY OF INDUSTRIAL APPLICATIONS IN MANUFACTURING, MAINTENANCE, AND REPAIR |
| Surface Treatment | OIL OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 13.00 MILLIMETERS MINIMUM AND 13.27 MILLIMETERS MAXIMUM MM |
| Thickness | 2.3 MILLIMETERS MINIMUM AND 2.7 MILLIMETERS MAXIMUM 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-B13-140HV-A3P PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5310-01-710-7561 is a Washer,flat, manufactured by International Organization for Standardization (iso), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-710-7561 has 1 manufacturer part number on file: ISO7089-B13-140HV-A3P (International Organization for Standardization (iso)).
Key specifications for ISO7089-B13-140HV-A3P: Overall Diameter: 2.48 MILLIMETERS MINIMUM AND 24.00 MILLIMETERS MAXIMUM MM; Hardness Rating: 75.0 ROCKWELL B MINIMUM; Cross-Sectional Shape Style: RECTANGULAR; Nondefinitive Spec/std Data: A GRADE. 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.