The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-221-0584, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Reid Products Inc. Dba Reid Products Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-221-0584 |
| Primary Part Number | HS7005DM8C8 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Reid Products Inc. Dba Reid Products Inc |
| Status | ACTIVE |
| Width Across Flats | 6.0 MILLIMETERS NOMINAL MM |
| Head Height | 8.0 MILLIMETERS NOMINAL MM |
| External Thread Tolerance Class | 4G6G |
| Fastener Length | 8.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 8.0 MILLIMETERS NOMINAL MM |
| Hole Configuration Style | ROUND INTERNAL HEXAGON |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL OVERALL |
| Hole Quantity | 6 |
| Thread Series Designator | M |
| Hole Type | DRILLED |
| Hole Diameter | 1.35 MILLIMETERS MAXIMUM MM |
| Head Diameter | 13.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| HS7005DM8C8 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| HS7005DM8C8 PRIMARY | Bristol Industries, Llc (USA) |
| HS7005DM8C8 PRIMARY | The Boeing Company (USA) |
| HS7005DM8C8 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HS7005DM8C8 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5305-01-221-0584 is a Screw,cap,socket Head, manufactured by Reid Products Inc. Dba Reid Products Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-221-0584 has 4 manufacturer part numbers on file: HS7005DM8C8 (Reid Products Inc. Dba Reid Products Inc), HS7005DM8C8 (Bristol Industries, Llc), HS7005DM8C8 (The Boeing Company), HS7005DM8C8 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HS7005DM8C8: Width Across Flats: 6.0 MILLIMETERS NOMINAL MM; Head Height: 8.0 MILLIMETERS NOMINAL MM; External Thread Tolerance Class: 4G6G; Fastener Length: 8.0 MILLIMETERS NOMINAL MM. 20 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.