The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-00-819-2935, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Pdi Ground Support Systems, Inc.. Government technical data includes 22 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 | 5306-00-819-2935 |
| Primary Part Number | 32510CA |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Pdi Ground Support Systems, Inc. |
| Status | ACTIVE |
| Head Height | 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Shoulder Length | 0.614 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST SHOULDER IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.062 INCHES NOMINAL IN |
| Shoulder Diameter | 0.526 INCHES MINIMUM AND 0.531 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Shoulder Shape | RIBBED FIRST SHOULDER |
| Hardness Rating | 21.0 ROCKWELL C MINIMUM AND 23.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Rib Length | 0.551 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Nonstandard Thread Pitch Diameter | +0.4639 TO 0.4675 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 110000 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.750 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 |
|---|---|
| 32510CA PRIMARY | Pdi Ground Support Systems, Inc. (USA) |
NSN 5306-00-819-2935 is a Bolt,ribbed Shoulder, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-819-2935 has 1 manufacturer part number on file: 32510CA (Pdi Ground Support Systems, Inc.).
Key specifications for 32510CA: Head Height: 0.229 INCHES MINIMUM AND 0.239 INCHES MAXIMUM IN; Fastener Length: 1.750 INCHES NOMINAL IN; Shoulder Length: 0.614 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST SHOULDER IN; Distance From Largest Diameter of Bearing Surface of Head to Ribs: 0.062 INCHES NOMINAL IN. 22 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.