The Bolt,machine, cataloged under National Stock Number 5306-00-757-8591, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-757-8591 |
| Primary Part Number | 69408A6-2 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Extended Washer Thickness | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Head Height | 0.230 INCHES NOMINAL IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.270 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES MINIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.181 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Hole Quantity | 4 |
| Thread Series Designator | UNF |
| Hole Diameter | 0.031 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 |
NSN 5306-00-757-8591 is a Bolt,machine, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-757-8591 has 2 manufacturer part numbers on file: 69408A6-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 69408A6-2 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 69408A6-2: Extended Washer Thickness: 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN; Head Height: 0.230 INCHES NOMINAL IN; Fastener Length: 0.250 INCHES NOMINAL IN; Extended Washer Diameter: 0.270 INCHES NOMINAL IN. 14 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.