The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-644-1817, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | The American Society of Mechanical Engineers (CAGE 05047); General Dynamics Land Systems Inc. (CAGE 01417) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-644-1817 |
| Primary Part Number | AES43M40780MBC49B1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AES43M40780MBC49B1 PRIMARY | The American Society of Mechanical Engineers (USA) |
| G1931BH040008N | General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| AESM4340780MBC49B1 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| G1931M | D/9 Drawing number reference only General Dynamics Land Systems Inc. |
NSN 5305-01-644-1817 is a Screw,cap,socket Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-644-1817 has 2 manufacturer part numbers on file: AES43M40780MBC49B1 (The American Society of Mechanical Engineers), G1931BH040008N (General Dynamics Land Systems 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.