The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-270-3609, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-270-3609 |
| Primary Part Number | 2051G66-001 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.222 INCHES NOMINAL IN |
| Head Height | 0.923 INCHES NOMINAL IN |
| Fastener Length | 4.700 INCHES NOMINAL IN |
| Extended Washer Diameter | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Thread Length | 1.880 INCHES NOMINAL IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.047 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Material | PLASTIC LOCKING FEATURE |
| Material | STEEL FASTENER |
| 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 |
|---|---|
| 2051G66-001 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| 2051G66-001 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 2051G66-001 | 5/9 Secondary reference General Electric Company |
NSN 5306-01-270-3609 is a Bolt,externally Relieved Body, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-270-3609 has 2 manufacturer part numbers on file: 2051G66-001 (Timken Gears & Services Inc. Div Philadelphia Gear), 2051G66-001 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 2051G66-001: Extended Washer Thickness: 0.222 INCHES NOMINAL IN; Head Height: 0.923 INCHES NOMINAL IN; Fastener Length: 4.700 INCHES NOMINAL IN; Extended Washer Diameter: 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN. 11 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.