The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-180-9107, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 17 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-180-9107 |
| Primary Part Number | LD111-0026-0521 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Head Height | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 1.764 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.442 INCHES MINIMUM AND 0.492 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 | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| LD111-0026-0521 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LD111-0026-0521 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| LD111-0026-0521 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| LD111-0026-0521 | J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings (USA) |
| LD111-0026-0521 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| LD111-0026-0521 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| LD111-0026-0521 | Hi-Shear Corporation (USA) |
| LD111-0026-0521 | Huck International, Inc (USA) |
| LD111-0026-0521 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| LD111-0026-0521 | 5/9 Secondary reference Preci-Manufacturing, Incorporated |
| LD111-0026-0521 | 5/2 Secondary reference U.S. Government activity |
| LD111-0026-0521 | 5/9 Secondary reference Infinity Fabrication, Inc. |
| LD111-0026-0521 | 5/9 Secondary reference Camnetics Manufacturing Corporation |
| LD111-0026-0521 | 5/9 Secondary reference Nordam Group Llc, the Div Nordam |
| LD111-0026-0521 | 5/9 Secondary reference Malones Cnc Machining Inc |
| LD111-0026-0521 | 5/9 Secondary reference D-J Engineering Inc Dba D-J Engineering Inc |
| LD111-0026-0521 | 5/9 Secondary reference Aero Components, Llc |
| LD111-0026-0521 | 5/2 Secondary reference U.S. Government activity |
| LD111-0026-0521 | 5/9 Secondary reference Volumatic Inc Dba Volumatic Inc |
NSN 5306-01-180-9107 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-180-9107 has 9 manufacturer part numbers on file: LD111-0026-0521 (Sps Technologies, Llc Dba PB Fasteners), LD111-0026-0521 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), LD111-0026-0521 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), LD111-0026-0521 (J.w. Manufacturing, Inc Dba Arconic Fastening Systems and Rings), LD111-0026-0521 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 4 more.
Key specifications for LD111-0026-0521: Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN; Fastener Length: 1.764 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.442 INCHES MINIMUM AND 0.492 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.