The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-164-8520, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-164-8520 |
| Primary Part Number | LD111-0026-0413 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 1.194 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.382 INCHES MINIMUM AND 0.412 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.812 INCHES NOMINAL 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 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| 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 |
|---|---|
| LD111-0026-0413 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LD111-0026-0413 PRIMARY | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| LD111-0026-0413 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| LD111-0026-0413 PRIMARY | Hi-Shear Corporation (USA) |
| LD111-0026-0413 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| LD111-0026-0413 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| LD111-0026-0413 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| LD111-0026-0413 | 3/2 Design control — primary reference U.S. Government activity |
| LD111-0026-0413 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-164-8520 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-164-8520 has 7 manufacturer part numbers on file: LD111-0026-0413 (Sps Technologies, Llc Dba PB Fasteners), LD111-0026-0413 (J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings), LD111-0026-0413 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), LD111-0026-0413 (Hi-Shear Corporation), LD111-0026-0413 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 2 more.
Key specifications for LD111-0026-0413: Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 1.194 INCHES MINIMUM AND 1.244 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.382 INCHES MINIMUM AND 0.412 INCHES MAXIMUM IN. 17 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.