The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-01-242-8555, 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 16 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 | 5306-01-242-8555 |
| Primary Part Number | 615AS111 |
| 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 | 0.310 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Shoulder Length | 0.500 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | ASTM B633 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-81562 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 1.090 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 8640 OR STEEL COMP 8740 OR STEEL COMP 3135 OR STEEL COMP 4140 OR STEEL COMP 4135 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.312 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 |
|---|---|
| 615AS111 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5306-01-242-8555 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 5306-01-242-8555 has 1 manufacturer part number on file: 615AS111 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 615AS111: Head Height: 0.310 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN; Fastener Length: 2.500 INCHES NOMINAL IN; Shoulder Length: 0.500 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: ASTM B633 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-81562 MIL SPEC 2ND TREATMENT RESPONSE OVERALL. 16 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.