The Bolt,u, cataloged under National Stock Number 5306-01-209-1028, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-209-1028 |
| Primary Part Number | 6350991-2 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Inside Distance Between Shanks | 1.0 INCHES NOMINAL IN |
| Thread Length | 1.0 INCHES NOMINAL IN |
| Distance From Inside Center of Bend to Bolt End | 1.75 INCHES NOMINAL IN |
| Style Designator | ROUND BEND |
| Nominal Thread Diameter | 0.25 INCHES IN |
| Features Provided | HEX NUT |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 3043T13 | Mcmaster-Carr Supply Co (USA) |
| 6350991-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 9314C02-2993-01 | 7/2 Vendor item drawing reference The Entwistle Company Llc |
| 3043T13 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-209-1028 is a Bolt,u, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-209-1028 has 2 manufacturer part numbers on file: 3043T13 (Mcmaster-Carr Supply Co), 6350991-2 (Naval Sea Systems Command).
Key specifications for 6350991-2: Inside Distance Between Shanks: 1.0 INCHES NOMINAL IN; Thread Length: 1.0 INCHES NOMINAL IN; Distance From Inside Center of Bend to Bolt End: 1.75 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.