The Screw,tapping, cataloged under National Stock Number 5305-01-586-7947, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Grainger Div of W W Grainger Inc. Government technical data includes 4 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 | 5305-01-586-7947 |
| Primary Part Number | 4AK83 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Grainger Div of W W Grainger Inc |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.187 INCHES IN |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Nonmachine Thread Style | CONE POINT (TYPE BP) |
| Head Style | HEXAGON EXTENDED WASHER |
| 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 |
|---|---|
| 4AK83 PRIMARY | Grainger Div of W W Grainger Inc (USA) |
NSN 5305-01-586-7947 is a Screw,tapping, manufactured by Grainger Div of W W Grainger Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-586-7947 has 1 manufacturer part number on file: 4AK83 (Grainger Div of W W Grainger Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-693-4844. Verify interchangeability with system specifications before substitution.
Key specifications for 4AK83: Nonmachine Nominal Thread Diameter: 0.187 INCHES IN; Fastener Length: 2.250 INCHES NOMINAL IN; Nonmachine Thread Style: CONE POINT (TYPE BP); Head Style: HEXAGON EXTENDED WASHER. 4 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.