The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-653-3330, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-653-3330 |
| Primary Part Number | NAS1801-4-40 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company |
| Status | ACTIVE |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| NAS1801-4-40 | Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company (USA) |
| Reference | Meaning |
|---|---|
| NAS1801-4-40 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-653-3330 is a Screw,cap,hexagon Head, manufactured by Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-653-3330 has 1 manufacturer part number on file: NAS1801-4-40 (Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company).
Key specifications for NAS1801-4-40: Fastener Length: 0.625 INCHES NOMINAL IN; Nominal Thread Diameter: 0.2500 INCHES IN; Head Style: HEXAGON; Thread Direction: RIGHT-HAND. 7 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.