The Screw,machine, cataloged under National Stock Number 5305-01-043-1857, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-043-1857 |
| Primary Part Number | NAS1221-3V20 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| NAS1221-3V20 | Nor-Cal Supply Co (USA) |
| NAS1221-3V20 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1221-3V20 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1221-3V20 PRIMARY | Huck International, Inc (USA) |
| NAS1221-3V20 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| NAS1221-3V20 | 5/9 Secondary reference U.S. Government activity |
| NAS1221-3V20 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1221-3V20 | 5/9 Secondary reference F and C Sales Inc |
| NAS1221-3V20 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-3V20 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-3V20 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1221-3V20 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1221-3V20 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-043-1857 is a Screw,machine, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-043-1857 has 5 manufacturer part numbers on file: NAS1221-3V20 (Nor-Cal Supply Co), NAS1221-3V20 (Hi-Shear Corporation), NAS1221-3V20 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1221-3V20 (Huck International, Inc), NAS1221-3V20 (Fastener Innovation Technology, Inc. Dba F I T).
Key specifications for NAS1221-3V20: Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 0 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.