The Screw,machine, cataloged under National Stock Number 5305-00-207-6563, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-207-6563 |
| Primary Part Number | AH4272 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Fastener Length | 0.188 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES |
| Thread Length | 0.162 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 45.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 64 |
| Thread Series Designator | UNF |
| Head Diameter | 0.125 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 |
|---|---|
| AH4272 PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
NSN 5305-00-207-6563 is a Screw,machine, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-207-6563 has 1 manufacturer part number on file: AH4272 (Ametek, Inc. Div Aerospace & Defense).
Key specifications for AH4272: Fastener Length: 0.188 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-5059 MIL SPEC ALL MATERIAL RESPONSES; Thread Length: 0.162 INCHES MINIMUM IN; Nominal Thread Diameter: 0.086 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.