The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-613-9837, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Gcs International Ltd. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-613-9837 |
| Primary Part Number | B1831BH030010N |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Bae Systems Gcs International Ltd |
| Status | ACTIVE |
| Width Across Flats | 22.0 MILLIMETERS NOMINAL MM |
| Head Height | 29.67 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 3.5 |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Material | ALUMINUM OVERALL |
| Thread Series Designator | M |
| Head Diameter | 44.42 MILLIMETERS MINIMUM AND 45.00 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 |
|---|---|
| B1831BH030010N | Bae Systems Gcs International Ltd (GBR) |
| Reference | Meaning |
|---|---|
| B1831BH030010N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-613-9837 is a Screw,cap,socket Head, manufactured by Bae Systems Gcs International Ltd, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-613-9837 has 1 manufacturer part number on file: B1831BH030010N (Bae Systems Gcs International Ltd).
Key specifications for B1831BH030010N: Width Across Flats: 22.0 MILLIMETERS NOMINAL MM; Head Height: 29.67 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM MM; Thread Pitch in Millimeters: 3.5; Head Style: HEXAGON. 9 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.