The Washer,flat, cataloged under National Stock Number 5310-01-186-7622, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kaydon Custom Filtration Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Kaydon Custom Filtration Corporation (CAGE 53964) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-186-7622 |
| Primary Part Number | 29163 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kaydon Custom Filtration Corporation |
| 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 |
|---|---|
| 29163 PRIMARY | Kaydon Custom Filtration Corporation (USA) |
| Reference | Meaning |
|---|---|
| 29163 | 3/9 Design control — primary reference Kaydon Corporation Dba Kaydon Filtration Group |
NSN 5310-01-186-7622 is a Washer,flat, manufactured by Kaydon Custom Filtration Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-186-7622 has 1 manufacturer part number on file: 29163 (Kaydon Custom Filtration Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 5120-01-195-2721, 5998-01-317-4605, 6520-01-579-2957. Verify interchangeability with system specifications before substitution.
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.