The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-208-2891, 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 18 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 | 5306-01-208-2891 |
| Primary Part Number | 9109M81P02 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Fastener Length | 0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN |
| Thread Length | 0.350 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | UNDERCUT HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.550 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.820 INCHES MINIMUM AND 0.850 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| 9109M81P02 PRIMARY | General Electric Company (USA) |
NSN 5306-01-208-2891 is a Bolt,close Tolerance, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-208-2891 has 1 manufacturer part number on file: 9109M81P02 (General Electric Company).
Key specifications for 9109M81P02: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Fastener Length: 0.960 INCHES MINIMUM AND 0.980 INCHES MAXIMUM IN. 18 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.