The Washer,flat, cataloged under National Stock Number 5310-01-189-4589, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anillo Industries Llc. 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-189-4589 |
| Primary Part Number | HS7012-8 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anillo Industries Llc |
| Status | ACTIVE |
| Outside Left Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Overall Diameter | 16.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 8.0 MILLIMETERS NOMINAL MM |
| Thickness | 2.0 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 |
|---|---|
| HS7012-8 PRIMARY | Anillo Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 8DIN1440 | 5/2 Secondary reference U.S. Government activity |
| OSS7012-8 | 5/9 Secondary reference Alliant Techsystems Operations Llc |
| M8DIN1440 | 5/9 Secondary reference Zelenda Machine and Tools Corp |
| OSS7012-8 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
| HS7012-8 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| HS7012-8 | 5/9 Secondary reference The Boeing Company |
| 8DIN1440 | 3/9 Design control — primary reference Anillo Industries Llc |
NSN 5310-01-189-4589 is a Washer,flat, manufactured by Anillo Industries Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-189-4589 has 1 manufacturer part number on file: HS7012-8 (Anillo Industries Llc).
Key specifications for HS7012-8: Outside Left Corner Chamfer Angle: 45.0 DEGREES NOMINAL; Overall Diameter: 16.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: BLANK RECTANGULAR; Peripheral Shape Style: ROUND. 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.