The Washer,convex, cataloged under National Stock Number 5310-00-007-6050, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-007-6050 |
| Primary Part Number | 4M120C6 |
| Item Name | Washer,convex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | CONVEX |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTMA484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.300 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN |
| Material Thickness | 0.048 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM 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 |
|---|---|
| 4M120C6 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 4M120C6 | C/1 Advisory reference — outside the item-of-supply concept All Power Manufacturing Co. |
| 4M120C6 | C/1 Advisory reference — outside the item-of-supply concept Anillo Industries Llc |
| 4M120C6 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 4M120C6 | C/1 Advisory reference — outside the item-of-supply concept Pioneer Machine Products Inc. |
| 4M120C6 | C/1 Advisory reference — outside the item-of-supply concept Tect Hypervelocity, Inc. |
NSN 5310-00-007-6050 is a Washer,convex, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-007-6050 has 1 manufacturer part number on file: 4M120C6 (The Boeing Company Div Defense).
Key specifications for 4M120C6: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: CONVEX; Material Document and Classification: MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OR ASTMA484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.300 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN. 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.