The Bolt,u, cataloged under National Stock Number 5306-01-699-3370, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Chicago Hardware and Fixture Company. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-699-3370 |
| Primary Part Number | 50020 3 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Chicago Hardware and Fixture Company |
| Status | ACTIVE |
| Inside Distance Between Shanks | 1.13 INCHES NOMINAL IN |
| Thread Length | 1.0 INCHES NOMINAL IN |
| Distance From Inside Center of Bend to Bolt End | 2.00 INCHES NOMINAL IN |
| Style Designator | ROUND BEND |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Body Thickness | 0.25 INCHES NOMINAL 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 |
|---|---|
| 50020 3 PRIMARY | Chicago Hardware and Fixture Company (USA) |
| Reference | Meaning |
|---|---|
| 17-61055 | 7/2 Vendor item drawing reference Department of Defense Project Manager-Mobile Electric Power |
NSN 5306-01-699-3370 is a Bolt,u, manufactured by Chicago Hardware and Fixture Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-699-3370 has 1 manufacturer part number on file: 50020 3 (Chicago Hardware and Fixture Company).
Key specifications for 50020 3: Inside Distance Between Shanks: 1.13 INCHES NOMINAL IN; Thread Length: 1.0 INCHES NOMINAL IN; Distance From Inside Center of Bend to Bolt End: 2.00 INCHES NOMINAL IN; Style Designator: ROUND BEND. 11 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.