The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-419-3105, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Johnson Controls Navy Systems, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-419-3105 |
| Primary Part Number | 021-17057-000 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Johnson Controls Navy Systems, Llc |
| Status | ACTIVE |
| Head Height | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Locking Feature | PATCH OR STRIP OR PELLET THREADS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 021-17057-000 PRIMARY | Johnson Controls Navy Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 021-17057 | 5/9 Secondary reference Johnson Controls Navy Systems, Llc |
NSN 5305-01-419-3105 is a Screw,cap,hexagon Head, manufactured by Johnson Controls Navy Systems, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-419-3105 has 1 manufacturer part number on file: 021-17057-000 (Johnson Controls Navy Systems, Llc).
Key specifications for 021-17057-000: Head Height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.625 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES 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.