The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-385-2274, 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 19 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 | 5306-01-385-2274 |
| Primary Part Number | 912G0203 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Syn-Tech System, Inc. |
| Status | ACTIVE |
| Head Height | 0.100 INCHES NOMINAL IN |
| Fastener Length | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Thread Length | 0.280 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.665 INCHES NOMINAL GRIP IN |
| Hole Configuration Style | ROUND |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Locking Feature | SLOTTED HEAD |
| Externally Relieved Body Diameter Quantity | 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.610 INCHES NOMINAL GRIP IN |
| Hole Type | DRILLED |
| Hole Diameter | 0.252 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Head Diameter | 0.350 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 |
|---|---|
| 912G0203 PRIMARY | Syn-Tech System, Inc. (USA) |
NSN 5306-01-385-2274 is a Bolt,externally Relieved Body, manufactured by Syn-Tech System, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-385-2274 has 1 manufacturer part number on file: 912G0203 (Syn-Tech System, Inc.).
Key specifications for 912G0203: Head Height: 0.100 INCHES NOMINAL IN; Fastener Length: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Thread Length: 0.280 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.665 INCHES NOMINAL GRIP IN. 19 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.