The Bolt,shoulder, cataloged under National Stock Number 5306-01-137-8903, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Syn-Tech System, Inc.. Government technical data includes 17 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 | 5306-01-137-8903 |
| Primary Part Number | 5073J162-1 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Syn-Tech System, Inc. |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 0.880 INCHES NOMINAL IN |
| Shoulder Length | 0.260 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | TT-E-485 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.516 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.560 INCHES NOMINAL IN |
| Surface Treatment | PAINT OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1018 OR STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 5073J162-1 PRIMARY | Syn-Tech System, Inc. (USA) |
NSN 5306-01-137-8903 is a Bolt,shoulder, manufactured by Syn-Tech System, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-137-8903 has 1 manufacturer part number on file: 5073J162-1 (Syn-Tech System, Inc.).
Key specifications for 5073J162-1: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 0.880 INCHES NOMINAL IN; Shoulder Length: 0.260 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: TT-E-485 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.