The Bolt,special, cataloged under National Stock Number 5306-00-004-4228, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Unbrako (a Division of S P S Technologies Ltd). The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bolt,special |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Unbrako (a Division of S P S Technologies Ltd) (CAGE U1811); Sps Technologies Ltd, Tj Brooks Division (CAGE K5673); Linread Ltd (CAGE U6683) |
| Parameter | Value |
|---|---|
| NSN | 5306-00-004-4228 |
| Primary Part Number | AS21010 |
| Item Name | Bolt,special |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Unbrako (a Division of S P S Technologies Ltd) |
| 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 |
|---|---|
| AS21010 | Unbrako (a Division of S P S Technologies Ltd) (GBR) |
| AS21010 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| AS21010 | Linread Ltd (GBR) |
| Reference | Meaning |
|---|---|
| AS21010 | C/1 Advisory reference — outside the item-of-supply concept Sae International Dba Sae International |
| AS21010 | 5/9 Secondary reference All Encompass Financial Service Inc Div Mortgage Division |
| AS21010 | 3/9 Design control — primary reference Society of British Aerospace Companies Ltd (sbac) |
NSN 5306-00-004-4228 is a Bolt,special, manufactured by Unbrako (a Division of S P S Technologies Ltd), classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-004-4228 has 3 manufacturer part numbers on file: AS21010 (Unbrako (a Division of S P S Technologies Ltd)), AS21010 (Sps Technologies Ltd, Tj Brooks Division), AS21010 (Linread Ltd).
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.