The Washer,flat, cataloged under National Stock Number 5310-01-494-4351, 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 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-494-4351 |
| Primary Part Number | 4M119C10 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anillo Industries Llc |
| Status | ACTIVE |
| Overall Diameter | 0.631 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.313 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Thickness | 0.133 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 |
|---|---|
| 4M119C10 | Tect Hypervelocity, Inc. (USA) |
| 4M119C10 PRIMARY | Anillo Industries Llc (USA) |
| 4M119C10 PRIMARY | The Boeing Company Div Defense (USA) |
| 4M119C10 | All Power Manufacturing Co. (USA) |
| Reference | Meaning |
|---|---|
| 4M119C10 | 5/9 Secondary reference Pioneer Machine Products Inc. |
NSN 5310-01-494-4351 is a Washer,flat, manufactured by Anillo Industries Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-494-4351 has 4 manufacturer part numbers on file: 4M119C10 (Tect Hypervelocity, Inc.), 4M119C10 (Anillo Industries Llc), 4M119C10 (The Boeing Company Div Defense), 4M119C10 (All Power Manufacturing Co.).
Key specifications for 4M119C10: Overall Diameter: 0.631 INCHES MINIMUM AND 0.639 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: PASSIVATE 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.