The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-284-5259, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-284-5259 |
| Primary Part Number | 5338742-085-SS |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 3.0 MICROMETERS BEARING SURFACE OF HEAD |
| Width Across Flats | 6.03 MILLIMETERS MINIMUM AND 6.15 MILLIMETERS MAXIMUM MM |
| Head Height | 7.78 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 40.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.25 |
| Thread Length | 22.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 70000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | M |
| Head Diameter | 12.73 MILLIMETERS MINIMUM AND 13.00 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 |
|---|---|
| 5338742-085-SS PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5338742-085-SS | 5/9 Secondary reference Metric and Multistandard Components Corp |
| 5338742-085-SS | 5/9 Secondary reference North American Bolt and Screw Co Inc |
| 5338742-085-SS | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 5338742-085-SS | 5/9 Secondary reference All Metric Co Hi-Strength Bolt Co |
NSN 5305-01-284-5259 is a Screw,cap,socket Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-284-5259 has 1 manufacturer part number on file: 5338742-085-SS (Naval Sea Systems Command).
Key specifications for 5338742-085-SS: Surface Finish: 3.0 MICROMETERS BEARING SURFACE OF HEAD; Width Across Flats: 6.03 MILLIMETERS MINIMUM AND 6.15 MILLIMETERS MAXIMUM MM; Head Height: 7.78 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G. 17 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.