The Cup,locking, cataloged under National Stock Number 5340-01-687-8340, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is General Nuclear Corp. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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. Unit of issue: EA.
| Item Name | Cup,locking |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | General Nuclear Corp (CAGE 67093); Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (CAGE 39VG9); Hamill Manufacturing Company Dba Hamill Manufacturing Co (CAGE 17661) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-687-8340 |
| Primary Part Number | 5948D67P1 |
| Item Name | Cup,locking |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | General Nuclear Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 5948D67P1 | General Nuclear Corp (USA) |
| 5948D67P1 | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| 5948D67P1 | Hamill Manufacturing Company Dba Hamill Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 5948D67 | D/9 Drawing number reference only Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh |
| 5948D67P1 | 3/9 Design control — primary reference Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh |
NSN 5340-01-687-8340 is a Cup,locking, manufactured by General Nuclear Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-687-8340 has 3 manufacturer part numbers on file: 5948D67P1 (General Nuclear Corp), 5948D67P1 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc), 5948D67P1 (Hamill Manufacturing Company Dba Hamill Manufacturing Co).
Possible hazard — SDS may be required (DLA HMIC P). 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.