The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-059-4999, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-059-4999 |
| Primary Part Number | R1057P11SL |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES NOMINAL IN |
| Head Height | 0.242 INCHES NOMINAL IN |
| Fastener Length | 0.812 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.624 INCHES MINIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | ROUND CHORD |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.1450 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.188 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.164 INCHES NOMINAL IN |
| Width Between Flats | 0.212 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.163 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.047 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 |
|---|---|
| R1057P11SL PRIMARY | General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp (USA) |
| Reference | Meaning |
|---|---|
| R1057P11SL | 5/9 Secondary reference U.S. Government activity |
| R1057P11SL | 5/9 Secondary reference General Electric Company |
NSN 5306-00-059-4999 is a Bolt,externally Relieved Body, manufactured by General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-059-4999 has 1 manufacturer part number on file: R1057P11SL (General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp).
Key specifications for R1057P11SL: Extended Washer Thickness: 0.030 INCHES NOMINAL IN; Head Height: 0.242 INCHES NOMINAL IN; Fastener Length: 0.812 INCHES NOMINAL IN; Extended Washer Diameter: 0.312 INCHES NOMINAL IN. 24 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.