The Setscrew, cataloged under National Stock Number 5305-01-101-9428, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ametek, Inc. Div Aerospace & Defense. 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 | 5305-01-101-9428 |
| Primary Part Number | AH-483-BY |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Spline Minor Diameter | 0.025 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN |
| Fastener Length | 0.125 INCHES NOMINAL IN |
| Spline Width | 0.011 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN |
| Thread Length | 0.125 INCHES NOMINAL IN |
| Spline Major Diameter | 0.034 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Internal Drive Style | FOUR SPLINE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| AH-483-BY PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
NSN 5305-01-101-9428 is a Setscrew, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-101-9428 has 1 manufacturer part number on file: AH-483-BY (Ametek, Inc. Div Aerospace & Defense).
Key specifications for AH-483-BY: Spline Minor Diameter: 0.025 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN; Fastener Length: 0.125 INCHES NOMINAL IN; Spline Width: 0.011 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN; Thread Length: 0.125 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.