The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-533-8232, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-533-8232 |
| Primary Part Number | BM15016-4-24A |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 1.910 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 26512-GB511BY4-24 MANUFACTURERS STANDARD |
| Grip Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| GB511BY4M24 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VEH160271-4M24 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511BY4M24 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GB511BY4M24 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511BY4M24 | Northrop Grumman Systems Corporation (USA) |
| BM15016-4-24A PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 110185-4-24M | 5/2 Secondary reference U.S. Government activity |
| GB511BY4M24 | 5/2 Secondary reference U.S. Government activity |
| BM15016-4-24A | 5/9 Secondary reference U.S. Government activity |
| 110185-4-24M | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-00-533-8232 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-533-8232 has 6 manufacturer part numbers on file: GB511BY4M24 (Sps Technologies, Llc Dba PB Fasteners), VEH160271-4M24 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511BY4M24 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), GB511BY4M24 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511BY4M24 (Northrop Grumman Systems Corporation) and 1 more.
Key specifications for BM15016-4-24A: Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 1.910 INCHES MINIMUM AND 1.940 INCHES MAXIMUM IN; Thread Length: 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN. 15 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.