The Bolt,machine, cataloged under National Stock Number 5306-00-984-4020, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5306-00-984-4020 |
| Primary Part Number | BACB30LM5U20 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.186 INCHES NOMINAL IN |
| Fastener Length | 1.781 INCHES NOMINAL IN |
| Thread Length | 0.531 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.250 INCHES NOMINAL IN |
| Width Between Flats | 0.502 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| BACB30LM5U20 | Howmet Global Fastening Systems Inc (USA) |
| BACB30LM5U20 | Federal Manufacturing Corp (USA) |
| BACB30LM5U20 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LM5U20 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30LM5U20 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BACB30LM5U20 | 5/2 Secondary reference U.S. Government activity |
| BACB30BG5C20A | 3/2 Design control — primary reference U.S. Government activity |
| BACB30LM5U20 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-984-4020 is a Bolt,machine, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-984-4020 has 5 manufacturer part numbers on file: BACB30LM5U20 (Howmet Global Fastening Systems Inc), BACB30LM5U20 (Federal Manufacturing Corp), BACB30LM5U20 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30LM5U20 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30LM5U20 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for BACB30LM5U20: Head Height: 0.186 INCHES NOMINAL IN; Fastener Length: 1.781 INCHES NOMINAL IN; Thread Length: 0.531 INCHES MINIMUM IN; Material Document and Classification: AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 16 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.