The Washer,recessed, cataloged under National Stock Number 5310-01-386-8155, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-386-8155 |
| Primary Part Number | 6397389-11 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-N-281 CLB, GR405 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Recess Depth | 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Material Thickness | 0.077 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY R-405 OVERALL |
| Hole Diameter | 0.437 INCHES MINIMUM AND 0.469 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 |
|---|---|
| 6397389-11 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6397389 PIECE 11 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-386-8155 is a Washer,recessed, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-386-8155 has 1 manufacturer part number on file: 6397389-11 (Naval Sea Systems Command).
Key specifications for 6397389-11: Overall Height: 0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: QQ-N-281 CLB, GR405 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN. 7 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.