The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-618-1933, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Metrican Inc Dba Metrix Manufacturing Company. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-618-1933 |
| Primary Part Number | 509441-1620 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Metrican Inc Dba Metrix Manufacturing Company |
| Status | ACTIVE |
| Fastener Length | 2.5 INCHES NOMINAL IN |
| Thread Length | 1.0 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Head Length | 1.0 INCHES NOMINAL IN |
| Material | STEEL FASTENER |
| Head Diameter | 1.5 INCHES NOMINAL IN |
| 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 |
|---|---|
| 509441-1620 | Metrican Inc Dba Metrix Manufacturing Company (USA) |
| 509441-1620 | Apollo Aerospace Components Llc (USA) |
| Reference | Meaning |
|---|---|
| 509441-1620 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-618-1933 is a Screw,cap,socket Head, manufactured by Metrican Inc Dba Metrix Manufacturing Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-618-1933 has 2 manufacturer part numbers on file: 509441-1620 (Metrican Inc Dba Metrix Manufacturing Company), 509441-1620 (Apollo Aerospace Components Llc).
Key specifications for 509441-1620: Fastener Length: 2.5 INCHES NOMINAL IN; Thread Length: 1.0 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Head Length: 1.0 INCHES NOMINAL IN. 6 specifications are 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.