The Screw,machine, cataloged under National Stock Number 5305-00-407-8486, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-00-407-8486 |
| Primary Part Number | GB2520-2-1 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corporation |
| Status | ACTIVE |
| Head Height | 0.319 INCHES NOMINAL IN |
| Screw Surface Treatment | CADMIUM AND DICHROMATE |
| Fastener Length | 0.281 INCHES NOMINAL IN |
| Thread Length | 0.281 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.278 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 | X |
| Part Number | Manufacturer |
|---|---|
| GB2520-2-1 | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| Reference | Meaning |
|---|---|
| GB2520-2-1 | 5/9 Secondary reference Itt Industries Inc Itt Aerospace Communications Div East |
| SCB40731-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-407-8486 is a Screw,machine, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-407-8486 has 1 manufacturer part number on file: GB2520-2-1 (L3harris Technologies, Inc. Dba Harris Corporation).
Key specifications for GB2520-2-1: Head Height: 0.319 INCHES NOMINAL IN; Screw Surface Treatment: CADMIUM AND DICHROMATE; Fastener Length: 0.281 INCHES NOMINAL IN; Thread Length: 0.281 INCHES MAXIMUM IN. 13 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.