The Screw,machine, cataloged under National Stock Number 5305-00-841-8345, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is International Business Machines Corp Parts Order Center Dept E - 54. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-841-8345 |
| Primary Part Number | 186393 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Business Machines Corp Parts Order Center Dept E - 54 |
| Status | ACTIVE |
| Head Height | 0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.125 INCHES NOMINAL IN |
| Screw Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.125 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.099 INCHES IN |
| Head Style | BINDING |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 48 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.197 INCHES MINIMUM AND 0.208 INCHES MAXIMUM 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 |
|---|---|
| 186393 PRIMARY | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| Reference | Meaning |
|---|---|
| 186393 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 5305-00-841-8345 is a Screw,machine, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-841-8345 has 1 manufacturer part number on file: 186393 (International Business Machines Corp Parts Order Center Dept E - 54).
2 possible matches (shared part number, not a government interchangeability claim): 5305-00-863-6138, 2520-01-107-5565. Verify interchangeability with system specifications before substitution.
Key specifications for 186393: Head Height: 0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.125 INCHES NOMINAL IN; Screw Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE. 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.