The Washer,shouldered, cataloged under National Stock Number 5310-01-415-5300, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-415-5300 |
| Primary Part Number | 6397426 FIND 128 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shoulder Height | 0.435 INCHES NOMINAL IN |
| Style Designator | SHOULDERED |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Shoulder Diameter | 3.120 INCHES MINIMUM AND 3.122 INCHES MAXIMUM IN |
| Material | PLASTIC ACETAL OVERALL |
| Hole Diameter | 2.875 INCHES MINIMUM AND 2.877 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 |
|---|---|
| 6397426 FIND 128 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-6397476-0A-128 | 5/9 Secondary reference Naval Sea Systems Command |
| 803-6397426-0A- 128 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-01-415-5300 is a Washer,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-415-5300 has 1 manufacturer part number on file: 6397426 FIND 128 (Naval Sea Systems Command).
Key specifications for 6397426 FIND 128: Overall Height: 0.560 INCHES NOMINAL IN; Shoulder Height: 0.435 INCHES NOMINAL IN; Style Designator: SHOULDERED; Outside Diameter: 4.000 INCHES NOMINAL IN. 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.