The Bolt,ring, cataloged under National Stock Number 5306-01-596-6437, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-596-6437 |
| Primary Part Number | 7D3-05257 IT NO4 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Ring Stock Diameter | 0.437 INCHES NOMINAL IN |
| Eye Stock Diameter | 1.375 INCHES NOMINAL IN |
| Thread Length | 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN |
| Shank Length | 0.875 INCHES NOMINAL IN |
| Style Designator | SWIVEL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Shoulder Diameter | 0.748 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Shoulder Length | 0.748 INCHES NOMINAL IN |
| 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 |
|---|---|
| 7D3-05257 IT NO4 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NAS1251 | 3/1 Design control — primary reference U.S. Government activity |
| NAS1251A10-0 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-596-6437 is a Bolt,ring, manufactured by Lake Shore Systems, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-596-6437 has 1 manufacturer part number on file: 7D3-05257 IT NO4 (Lake Shore Systems, Inc.).
Key specifications for 7D3-05257 IT NO4: Ring Stock Diameter: 0.437 INCHES NOMINAL IN; Eye Stock Diameter: 1.375 INCHES NOMINAL IN; Thread Length: 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN; Shank Length: 0.875 INCHES NOMINAL IN. 14 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.