The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-00-709-1474, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Saginaw Products Corporation Dba Cignys. Government technical data includes 20 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 | 5306-00-709-1474 |
| Primary Part Number | A6412 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Saginaw Products Corporation Dba Cignys |
| Status | ACTIVE |
| Head Height | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Fastener Length | 1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM IN |
| Shoulder Length | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Shoulder Diameter | 0.429 INCHES MINIMUM AND 0.434 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Rib Length | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.429 INCHES MINIMUM AND 0.434 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.625 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 |
|---|---|
| A6412 PRIMARY | Saginaw Products Corporation Dba Cignys (USA) |
NSN 5306-00-709-1474 is a Bolt,ribbed Shoulder, manufactured by Saginaw Products Corporation Dba Cignys, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-709-1474 has 1 manufacturer part number on file: A6412 (Saginaw Products Corporation Dba Cignys).
Key specifications for A6412: Head Height: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Fastener Length: 1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM IN; Shoulder Length: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL. 20 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.