The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-527-0122, 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 13 specifications, cited from the U.S. Government catalog. The record lists 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-527-0122 |
| Primary Part Number | LD111-0026-4050 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.350 INCHES NOMINAL IN |
| Fastener Length | 3.902 INCHES NOMINAL IN |
| Thread Length | 0.777 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.125 INCHES NOMINAL IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP XM-13 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 |
|---|---|
| LD111-0026-4050 PRIMARY | Huck International, Inc (USA) |
| LD111-0026-4050 PRIMARY | Hi-Shear Corporation (USA) |
| LD111-0026-4050 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| LD111-0026-4050 PRIMARY | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| LD111-0026-4050 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| LD111-0026-4050 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| LD111-0026-4050 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LD111-0026-4050 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| LD111-0026-4050 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| LD111-0026-4050 | 3/2 Design control — primary reference U.S. Government activity |
| LD111-0026-4050 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| LD111-0026-4050 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-527-0122 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-527-0122 has 9 manufacturer part numbers on file: LD111-0026-4050 (Huck International, Inc), LD111-0026-4050 (Hi-Shear Corporation), LD111-0026-4050 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), LD111-0026-4050 (J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings), LD111-0026-4050 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for LD111-0026-4050: Head Height: 0.350 INCHES NOMINAL IN; Fastener Length: 3.902 INCHES NOMINAL IN; Thread Length: 0.777 INCHES NOMINAL IN; Nominal Thread Diameter: 0.625 INCHES IN. 13 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.