The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-143-5035, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 21 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 | 5306-01-143-5035 |
| Primary Part Number | 67A314C138-1 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Rib Included Angle | 90.0 DEGREES NOMINAL |
| Fastener Length | 2.062 INCHES NOMINAL IN |
| Shoulder Length | 0.781 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | ASTM B633,SC-4 TYPE IV ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.062 INCHES NOMINAL IN |
| Shoulder Diameter | 0.562 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.125 INCHES NOMINAL IN |
| Shoulder Shape | RIBBED FIRST SHOULDER |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Rib Length | 0.719 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1045 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.875 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 |
|---|---|
| 67A314C138-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5306-01-143-5035 is a Bolt,ribbed Shoulder, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-143-5035 has 1 manufacturer part number on file: 67A314C138-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 67A314C138-1: Head Height: 0.250 INCHES NOMINAL IN; Rib Included Angle: 90.0 DEGREES NOMINAL; Fastener Length: 2.062 INCHES NOMINAL IN; Shoulder Length: 0.781 INCHES NOMINAL FIRST SHOULDER IN. 21 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.