The Bolt,machine, cataloged under National Stock Number 5306-00-079-3817, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-079-3817 |
| Primary Part Number | 174390 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Head Height | 0.160 INCHES NOMINAL IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.300 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN |
| Thread Length | 0.570 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.100 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.930 INCHES NOMINAL IN |
| Surface Treatment | CHROMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.340 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.880 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 | F |
| Part Number | Manufacturer |
|---|---|
| 174390 | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| 174390 | Northrop Grumman Systems Corporation (USA) |
| 174390 | Goodrich Corporation Div Advanced Structures Landing Systems (USA) |
| 174390 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 174390 | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
| 174390 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 174390 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| 174390 | C/1 Advisory reference — outside the item-of-supply concept Bendix Corp the |
NSN 5306-00-079-3817 is a Bolt,machine, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-079-3817 has 4 manufacturer part numbers on file: 174390 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems), 174390 (Northrop Grumman Systems Corporation), 174390 (Goodrich Corporation Div Advanced Structures Landing Systems), 174390 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
2 possible matches (shared part number, not a government interchangeability claim): 2590-01-449-8768, 5315-01-597-5934. Verify interchangeability with system specifications before substitution.
Key specifications for 174390: Head Height: 0.160 INCHES NOMINAL IN; Fastener Length: 1.500 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.300 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN; Thread Length: 0.570 INCHES MAXIMUM IN. 17 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.