The Washer,flat, cataloged under National Stock Number 5310-01-539-1393, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co. 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 | 5310-01-539-1393 |
| Primary Part Number | 146-200561-00 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co |
| Status | ACTIVE |
| Overall Diameter | 0.130 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.245 INCHES NOMINAL IN |
| Thickness | 0.020 INCHES NOMINAL 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 |
|---|---|
| 146-200561-00 PRIMARY | Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA) |
NSN 5310-01-539-1393 is a Washer,flat, manufactured by Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-539-1393 has 1 manufacturer part number on file: 146-200561-00 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co).
Key specifications for 146-200561-00: Overall Diameter: 0.130 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ZINC OVERALL; 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.