The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-481-0088, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-481-0088 |
| Primary Part Number | ST3M833V12T27 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.351 INCHES NOMINAL IN |
| Fastener Length | 3.442 INCHES NOMINAL IN |
| Thread Length | 1.259 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.688 INCHES NOMINAL IN |
| Width Between Flats | 1.052 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN |
| Grip Diameter | 0.7485 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Locking Feature | KNURLED LOCKING FEATURE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.947 INCHES NOMINAL 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 | Y |
| Part Number | Manufacturer |
|---|---|
| LB52T12-27 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| LB52T12-27 | Hi-Shear Corporation (USA) |
| ST3M833V12T27 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5306-01-481-0088 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-481-0088 has 3 manufacturer part numbers on file: LB52T12-27 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), LB52T12-27 (Hi-Shear Corporation), ST3M833V12T27 (The Boeing Company Div Defense).
Key specifications for ST3M833V12T27: Head Height: 0.351 INCHES NOMINAL IN; Fastener Length: 3.442 INCHES NOMINAL IN; Thread Length: 1.259 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE 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.