The Washer,shouldered, cataloged under National Stock Number 5310-01-571-0107, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lta/d-Cemco Inc Dba D-Cemco. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-571-0107 |
| Primary Part Number | 1401-1-FR4 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lta/d-Cemco Inc Dba D-Cemco |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1401-1-FR4 | Lta/d-Cemco Inc Dba D-Cemco (USA) |
| 14558U | Staffall, Inc. Dba Staffall Inc (USA) |
| W308-19 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| 993340-19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-571-0107 is a Washer,shouldered, manufactured by Lta/d-Cemco Inc Dba D-Cemco, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-571-0107 has 3 manufacturer part numbers on file: 1401-1-FR4 (Lta/d-Cemco Inc Dba D-Cemco), 14558U (Staffall, Inc. Dba Staffall Inc), W308-19 (Fastener Innovation Technology, Inc. Dba F I T).
Key specifications for 1401-1-FR4: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: WASHER,SHOULDERED,AIRCRAFT; End Item Identification: F-18 E/F FIGHTER AIRCRAFT. 1 specification is 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.