The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-086-3558, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hensoldt Sensors Gmbh Div Seps. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-086-3558 |
| Primary Part Number | 344677-1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hensoldt Sensors Gmbh Div Seps |
| Status | ACTIVE |
| Fastener Length | 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 344677-1 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| Reference | Meaning |
|---|---|
| 344677-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-086-3558 is a Screw,cap,socket Head, manufactured by Hensoldt Sensors Gmbh Div Seps, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-086-3558 has 1 manufacturer part number on file: 344677-1 (Hensoldt Sensors Gmbh Div Seps).
Key specifications for 344677-1: Fastener Length: 0.850 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 TYPE I FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: FLAT CHAMFER. 10 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.