The Screw,close Tolerance, cataloged under National Stock Number 5305-01-497-3166, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAGE L4528); Huck International, Inc (CAGE 17446); Hi-Shear Corporation (CAGE 73197) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-497-3166 |
| Primary Part Number | CHT4025-3-12 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| CHT4025-3-12 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| CHT4025-3-12 | Huck International, Inc (USA) |
| CHT4025-3-12 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| CHT4025-3-12 | 3/2 Design control — primary reference U.S. Government activity |
| CHT4025-3-12 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-497-3166 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-497-3166 has 3 manufacturer part numbers on file: CHT4025-3-12 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), CHT4025-3-12 (Huck International, Inc), CHT4025-3-12 (Hi-Shear Corporation).
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.