The Setscrew, cataloged under National Stock Number 5305-01-433-8494, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-433-8494 |
| Primary Part Number | 6405354-109 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.875 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY R-405 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 |
|---|---|
| 6405354-109 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 801-6405354 FIND 109 | 5/9 Secondary reference Naval Sea Systems Command |
| 211078462 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5305-01-433-8494 is a Setscrew, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-433-8494 has 1 manufacturer part number on file: 6405354-109 (Naval Sea Systems Command).
Key specifications for 6405354-109: Width Across Flats: 0.125 INCHES NOMINAL IN; Fastener Length: 0.875 INCHES NOMINAL IN; Thread Length: 0.875 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES 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.