The Screw,close Tolerance, cataloged under National Stock Number 5305-01-549-4559, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-549-4559 |
| Primary Part Number | TX1026C8-28A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| TX1026C8-28A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| TX1026C8-28A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1026C8-28A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026C8-28A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026C8-28A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1026C8-28A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1169C8-28A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1026C8-28A PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| TX1026C8-28A | 5/9 Secondary reference Sps Technologies Inc |
| TX1026C8-28A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-549-4559 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-549-4559 has 8 manufacturer part numbers on file: TX1026C8-28A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), TX1026C8-28A (Sps Technologies, Llc Dba PB Fasteners), TX1026C8-28A (Howmet Global Fastening Systems Inc), TX1026C8-28A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1026C8-28A (Fairchild Fasteners Europe - Vsd Gmbh) and 3 more.
Key specifications for TX1026C8-28A: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: SCREW,CLOSE TOLERANCE; End Item Identification: F18 E/F FIGHTER AIRCRAFT. 1 specification is 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.