The Screw,assembled Washer, cataloged under National Stock Number 5305-00-062-2686, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Allmetal Screw Products Corp. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-00-062-2686 |
| Primary Part Number | 4-40NC2AX3-8 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Allmetal Screw Products Corp |
| Status | ACTIVE |
| Head Height | 0.062 INCHES NOMINAL IN |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.344 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | ROUND |
| Primary Washer Style | FINISHING |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.023 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Head Diameter | 0.188 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 |
|---|---|
| 4-40NC2AX3-8 PRIMARY | Allmetal Screw Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 4-40VNC2AX3-8 | C/1 Advisory reference — outside the item-of-supply concept Allmetal Screw Products Corp |
NSN 5305-00-062-2686 is a Screw,assembled Washer, manufactured by Allmetal Screw Products Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-062-2686 has 1 manufacturer part number on file: 4-40NC2AX3-8 (Allmetal Screw Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 5305-00-951-3728. Verify interchangeability with system specifications before substitution.
Key specifications for 4-40NC2AX3-8: Head Height: 0.062 INCHES NOMINAL IN; Fastener Length: 0.375 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.250 INCHES NOMINAL IN; Thread Length: 0.344 INCHES MINIMUM IN. 17 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.