The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-597-2889, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-597-2889 |
| Primary Part Number | 39964 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Width Across Flats | 5.0 MILLIMETERS MINIMUM AND 5.1 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 29.6 MILLIMETERS MINIMUM AND 30.4 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 1.3 |
| Thread Length | 22.0 MILLIMETERS NOMINAL MM |
| Material Document and Classification | ISO 898, CLASS 10.9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | BLACK CHEMICAL FINISH OVERALL |
| Internal Drive Style | HEXAGON |
| Material | STEEL PROPERTY CLASS 10.9 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 15.6 MILLIMETERS MINIMUM AND 16.0 MILLIMETERS MAXIMUM 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 |
|---|---|
| 39964 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
| 12759-01311 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5305-01-597-2889 is a Screw,cap,socket Head, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-597-2889 has 2 manufacturer part numbers on file: 39964 (Fastenal Company Dba Fastenal Co), 12759-01311 (Fastenal Company Dba Fastenal Co).
Key specifications for 39964: Width Across Flats: 5.0 MILLIMETERS MINIMUM AND 5.1 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 29.6 MILLIMETERS MINIMUM AND 30.4 MILLIMETERS MAXIMUM MM; Thread Pitch in Millimeters: 1.3. 15 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.