The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-588-8791, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 6 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 | 5305-01-588-8791 |
| Primary Part Number | 223-6546 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Fastener Length | 170.0 MILLIMETERS NOMINAL MM |
| Thread Pitch in Millimeters | 2.5 |
| Nominal Thread Diameter | 18.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | M |
| 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 |
|---|---|
| 223-6546 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5305-01-588-8791 is a Screw,cap,hexagon Head, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-588-8791 has 1 manufacturer part number on file: 223-6546 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 223-6546: Fastener Length: 170.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 2.5; Nominal Thread Diameter: 18.0 MILLIMETERS MM; Head Style: HEXAGON. 6 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.