The Washer,recessed, cataloged under National Stock Number 5310-01-163-9593, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Washer,recessed |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | The Boeing Company (CAGE 8V613); Ontic Engineering & Manufacturing, Inc Dba Ontic Us (CAGE 45934); Lynn Electronics Llc (CAGE 19151); Echelon Supply and Service, Inc. (CAGE 61125) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-163-9593 |
| Primary Part Number | 1168310-1 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1168310-1 PRIMARY | The Boeing Company (USA) |
| 1168310-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 1168310-1 | Lynn Electronics Llc (USA) |
| 1168310-1 | Echelon Supply and Service, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1168310-1 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-01-163-9593 is a Washer,recessed, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-163-9593 has 4 manufacturer part numbers on file: 1168310-1 (The Boeing Company), 1168310-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 1168310-1 (Lynn Electronics Llc), 1168310-1 (Echelon Supply and Service, Inc.).
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.