The Washer,flat, cataloged under National Stock Number 5310-01-499-7219, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Urdan Industries Usa Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-499-7219 |
| Primary Part Number | 5-601-172 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Urdan Industries Usa Inc |
| Status | ACTIVE |
| Overall Diameter | 180.0 MILLIMETERS NOMINAL MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 121.0 MILLIMETERS NOMINAL MM |
| Thickness | 1.0 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 |
|---|---|
| 5-601-172 PRIMARY | Urdan Industries Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 10339874 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-499-7219 is a Washer,flat, manufactured by Urdan Industries Usa Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-499-7219 has 1 manufacturer part number on file: 5-601-172 (Urdan Industries Usa Inc).
Key specifications for 5-601-172: Overall Diameter: 180.0 MILLIMETERS NOMINAL MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; End Item Identification: MINE CLEARING ROLLER SYSTEM. 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.