The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-408-6909, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 13 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 | 5305-01-408-6909 |
| Primary Part Number | 5C1-04625-14 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Head Height | 0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Thread Length | 1.250 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.938 INCHES NOMINAL IN |
| Locking Feature | PATCH THREADS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | NICKEL ALLOY R-405 AND NICKEL ALLOY 400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 5C1-04625-14 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 5D3-04012-52 | Lake Shore Systems, Inc. (USA) |
NSN 5305-01-408-6909 is a Screw,cap,hexagon Head, manufactured by Lake Shore Systems, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-408-6909 has 2 manufacturer part numbers on file: 5C1-04625-14 (Lake Shore Systems, Inc.), 5D3-04012-52 (Lake Shore Systems, Inc.).
Key specifications for 5C1-04625-14: Head Height: 0.376 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL. 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.