The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-181-4105, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hensoldt Sensors Gmbh Div Seps. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-181-4105 |
| Primary Part Number | 344728-1 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hensoldt Sensors Gmbh Div Seps |
| Status | ACTIVE |
| Width Across Flats | 0.1562 INCHES MINIMUM AND 0.1587 INCHES MAXIMUM IN |
| Head Height | 0.190 INCHES NOMINAL IN |
| Fastener Length | 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.310 INCHES NOMINAL IN |
| 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 |
|---|---|
| 344728-1 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| Reference | Meaning |
|---|---|
| 344728-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-181-4105 is a Bolt,internal Wrenching, manufactured by Hensoldt Sensors Gmbh Div Seps, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-181-4105 has 1 manufacturer part number on file: 344728-1 (Hensoldt Sensors Gmbh Div Seps).
Key specifications for 344728-1: Width Across Flats: 0.1562 INCHES MINIMUM AND 0.1587 INCHES MAXIMUM IN; Head Height: 0.190 INCHES NOMINAL IN; Fastener Length: 0.970 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN; Thread Length: 0.370 INCHES NOMINAL IN. 13 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.