The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-348-2670, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-348-2670 |
| Primary Part Number | 03A095-4-19 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Head Height | 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Fastener Length | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Grip Diameter | 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.563 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 | X |
| Part Number | Manufacturer |
|---|---|
| 03A095-4-19 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| LB58-4-19 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 03A095-4-19 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| LB58-4-19 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| AS402-4-19 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-348-2670 is a Bolt,close Tolerance, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-348-2670 has 4 manufacturer part numbers on file: 03A095-4-19 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), LB58-4-19 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), 03A095-4-19 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), LB58-4-19 (Hi-Shear Corporation).
Key specifications for 03A095-4-19: Head Height: 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Fastener Length: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.500 INCHES NOMINAL 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.