The Bolt,shoulder, cataloged under National Stock Number 5306-01-252-3058, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-252-3058 |
| Primary Part Number | L3223681-045 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Head Height | 0.257 INCHES NOMINAL IN |
| Fastener Length | 2.349 INCHES MINIMUM AND 2.369 INCHES MAXIMUM IN |
| Shoulder Length | 1.847 INCHES MINIMUM AND 1.867 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.482 INCHES MINIMUM AND 0.522 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.076 INCHES NOMINAL FIRST HOLE IN |
| 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 |
| Width Between Flats | 0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.178 INCHES NOMINAL FIRST HOLE IN |
| 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 |
|---|---|
| L3223681-045 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| L3223681-045 | Alta Products Co Inc (USA) |
| L3223681-045 | Huck International, Inc (USA) |
| L3223681-045 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| L3223681-045 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| L3223681-045 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| L3223681-045 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| L3223681-045 | 5/2 Secondary reference U.S. Government activity |
| L3223681-045 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-252-3058 is a Bolt,shoulder, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-252-3058 has 7 manufacturer part numbers on file: L3223681-045 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), L3223681-045 (Alta Products Co Inc), L3223681-045 (Huck International, Inc), L3223681-045 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), L3223681-045 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
Key specifications for L3223681-045: Head Height: 0.257 INCHES NOMINAL IN; Fastener Length: 2.349 INCHES MINIMUM AND 2.369 INCHES MAXIMUM IN; Shoulder Length: 1.847 INCHES MINIMUM AND 1.867 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM FIRST SHOULDER 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.