The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-386-8142, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div Cylinder Division. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-386-8142 |
| Primary Part Number | 391 1402 127 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Parker Hannifin Corporation Div Cylinder Division |
| Status | ACTIVE |
| Width Across Flats | 0.310 INCHES NOMINAL IN |
| Head Height | 0.380 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.380 INCHES NOMINAL IN |
| Material Document and Classification | SAE J429 GR5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.560 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 |
|---|---|
| 391 1402 127 PRIMARY | Parker Hannifin Corporation Div Cylinder Division (USA) |
NSN 5305-01-386-8142 is a Screw,cap,socket Head, manufactured by Parker Hannifin Corporation Div Cylinder Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-386-8142 has 1 manufacturer part number on file: 391 1402 127 (Parker Hannifin Corporation Div Cylinder Division).
Key specifications for 391 1402 127: Width Across Flats: 0.310 INCHES NOMINAL IN; Head Height: 0.380 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.380 INCHES NOMINAL IN. 14 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.