The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-214-2759, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-214-2759 |
| Primary Part Number | 1285M91G02 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Head Height | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Fastener Length | 1.648 INCHES MINIMUM AND 1.668 INCHES MAXIMUM IN |
| Thread Length | 0.738 INCHES NOMINAL IN |
| First Diameter From Head | 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.910 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Head Style | ROUND W/WRENCH FLATS CHAMFERED |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Width Between Flats | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY OVERALL |
| Third Diameter From Head | 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.450 INCHES MINIMUM AND 0.470 INCHES MAXIMUM 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 |
|---|---|
| 1285M91G02 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 1285M91G02 | General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp (USA) |
| 1285M91G02 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 1285M91G02 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 1285M91G02 | 5/2 Secondary reference U.S. Government activity |
| 1285M91G01 | 5/9 Secondary reference General Electric Company |
NSN 5306-01-214-2759 is a Bolt,externally Relieved Body, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-214-2759 has 4 manufacturer part numbers on file: 1285M91G02 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 1285M91G02 (General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp), 1285M91G02 (Sps Technologies, Llc Dba PB Fasteners), 1285M91G02 (General Electric Company).
Key specifications for 1285M91G02: Head Height: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN; Fastener Length: 1.648 INCHES MINIMUM AND 1.668 INCHES MAXIMUM IN; Thread Length: 0.738 INCHES NOMINAL IN; First Diameter From Head: 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM 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.