The Bolt,machine, cataloged under National Stock Number 5306-01-019-5565, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-019-5565 |
| Primary Part Number | 761909-1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.055 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 | X |
| Part Number | Manufacturer |
|---|---|
| 761909-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 761909-1 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 761909-1 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 761909-1 | 5/2 Secondary reference U.S. Government activity |
| 761909-1 | D/9 Drawing number reference only Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 5306-01-019-5565 is a Bolt,machine, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-019-5565 has 3 manufacturer part numbers on file: 761909-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 761909-1 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 761909-1 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 761909-1: Hole Configuration Style: HEXAGON LONGITUDINAL HOLE; Nominal Thread Diameter: 0.250 INCHES IN; Head Style: DOUBLE HEXAGON W/HOLE; Thread Direction: RIGHT-HAND. 10 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.