The Washer,flat, cataloged under National Stock Number 5310-01-363-0739, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-363-0739 |
| Primary Part Number | 206430 PC 10 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Overall Diameter | 2.875 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material | COPPER ALLOY 464 OVERALL |
| Hole Diameter | 0.438 INCHES NOMINAL IN |
| Thickness | 0.125 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 |
|---|---|
| 206430 PC 10 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| SY/97-25-107 | 5/9 Secondary reference Naval Sea Systems Command |
| SY/97-25-107 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 206430 PC. NO. | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 206430 PC 10 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-363-0739 is a Washer,flat, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-363-0739 has 1 manufacturer part number on file: 206430 PC 10 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 206430 PC 10: Overall Diameter: 2.875 INCHES NOMINAL IN; Material Document and Classification: QQ-B-639 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY 464 OVERALL; Hole Diameter: 0.438 INCHES NOMINAL IN. 5 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.