The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-202-6850, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-202-6850 |
| Primary Part Number | 3G4052 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Height | 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Fastener Length | 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN |
| Shoulder Length | 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM SECOND SHOULDER IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.160 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Thread Length | 1.550 INCHES NOMINAL IN |
| Material Document and Classification | SAE GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Rib Length | 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Thread Series Designator | UNF |
| Rib Quantity | 29 |
| Head Diameter | 1.440 INCHES MINIMUM AND 1.560 INCHES MAXIMUM 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 |
|---|---|
| 3G4052 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5306-01-202-6850 is a Bolt,ribbed Shoulder, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-202-6850 has 1 manufacturer part number on file: 3G4052 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3G4052: Head Height: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Fastener Length: 2.590 INCHES MINIMUM AND 2.650 INCHES MAXIMUM IN; Shoulder Length: 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM SECOND SHOULDER IN; Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.160 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN. 15 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.