The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-216-5690, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lawson Products, Inc.. Government technical data includes 12 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-216-5690 |
| Primary Part Number | A606 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lawson Products, Inc. |
| Status | ACTIVE |
| Head Height | 0.181 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN |
| Fastener Length | 1.953 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN |
| Thread Length | 0.750 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 190000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL 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 |
|---|---|
| A606 PRIMARY | Lawson Products, Inc. (USA) |
NSN 5305-01-216-5690 is a Screw,cap,hexagon Head, manufactured by Lawson Products, Inc., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-216-5690 has 1 manufacturer part number on file: A606 (Lawson Products, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-433-3629. Verify interchangeability with system specifications before substitution.
Key specifications for A606: Head Height: 0.181 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN; Fastener Length: 1.953 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN; Thread Length: 0.750 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.250 INCHES IN. 12 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.