The Setscrew, cataloged under National Stock Number 5305-01-459-6678, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Unertl John Optical Co Inc. Government technical data includes 8 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 | 5305-01-459-6678 |
| Primary Part Number | T-118 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Unertl John Optical Co Inc |
| Status | ACTIVE |
| Fastener Length | 0.826 INCHES NOMINAL IN |
| Thread Length | 0.589 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| T-118 PRIMARY | Unertl John Optical Co Inc (USA) |
NSN 5305-01-459-6678 is a Setscrew, manufactured by Unertl John Optical Co Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-459-6678 has 1 manufacturer part number on file: T-118 (Unertl John Optical Co Inc).
Key specifications for T-118: Fastener Length: 0.826 INCHES NOMINAL IN; Thread Length: 0.589 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN; Head Style: HEADLESS (SETSCREW). 8 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.