The Screw Assembly,panel, cataloged under National Stock Number 5305-01-256-5802, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-256-5802 |
| Primary Part Number | F7500-M4-B-4 |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.290 INCHES NOMINAL IN |
| External Thread Tolerance Class | 4H |
| Fastener Length | 0.600 INCHES NOMINAL IN |
| Material Accommodated Thickness | 0.087 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Thread Pitch in Millimeters | 0.7 |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ANODIZE STAND-OFF |
| Surface Treatment | PASSIVATE PRIMARY WASHER |
| Surface Treatment | PASSIVATE FASTENER |
| Surface Treatment | PASSIVATE SECONDARY WASHER |
| Surface Treatment | PASSIVATE SPRING |
| Internal Drive Style | SLOT |
| Material | STEEL COMP 301 SECONDARY WASHER |
| Material | STEEL COMP 302 SPRING |
| Material | STEEL CORROSION RESISTING FASTENER |
| Material | STEEL COMP 301 PRIMARY WASHER |
| Material | ALUMINUM ALLOY 6061 STAND-OFF |
| Thread Series Designator | M |
| Head Diameter | 0.420 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 |
|---|---|
| F7500-M4-B-4 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| F7500-M4-B-4 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-01-256-5802 is a Screw Assembly,panel, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-256-5802 has 1 manufacturer part number on file: F7500-M4-B-4 (Huck International, Inc).
Key specifications for F7500-M4-B-4: Head Height: 0.290 INCHES NOMINAL IN; External Thread Tolerance Class: 4H; Fastener Length: 0.600 INCHES NOMINAL IN; Material Accommodated Thickness: 0.087 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN. 21 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.