The Screw,machine, cataloged under National Stock Number 5305-01-438-2639, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Screw,machine |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc (CAGE 048Q5) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-438-2639 |
| Primary Part Number | 121 GS/4021 ND25/40 100MM PN9 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc |
| 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 |
|---|---|
| 121 GS/4021 ND25/40 PN9 | Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc (USA) |
| 121 GS/4021 ND25/40 100MM PN9 PRIMARY | Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 121 GS/4021 ND2 5/40 100MM PN9 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-438-2639 is a Screw,machine, manufactured by Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-438-2639 has 2 manufacturer part numbers on file: 121 GS/4021 ND25/40 PN9 (Scandinavian Boiler Service, Inc. Dba Saacke Usa Inc), 121 GS/4021 ND25/40 100MM PN9 (Scandinavian Boiler Service, Inc. Dba Saacke Usa 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.