The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-512-4206, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-512-4206 |
| Primary Part Number | 940555 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNRC |
| 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 |
|---|---|
| 940555 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 940555 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-01-512-4206 is a Screw,cap,socket Head, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-512-4206 has 1 manufacturer part number on file: 940555 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 940555: Surface Treatment Document and Classification: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.000 INCHES NOMINAL IN; Material Document and Classification: FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.312 INCHES IN. 12 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.