The Bolt,machine, cataloged under National Stock Number 5306-01-609-8449, 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 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-609-8449 |
| Primary Part Number | 3M1275E4D20A |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Fastener Length | 1.719 INCHES NOMINAL IN |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.1250 INCHES NOMINAL IN |
| Head Minor Diameter | 0.470 INCHES MINIMUM AND 0.477 INCHES MAXIMUM IN |
| Grip Diameter | 0.2500 INCHES NOMINAL IN |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Material | NICKEL ALLOY 718 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.076 INCHES NOMINAL IN |
| Head Diameter | 0.4970 INCHES MINIMUM AND 0.5066 INCHES MAXIMUM 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 |
|---|---|
| 3M1275E4D20A PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5306-01-609-8449 is a Bolt,machine, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-609-8449 has 1 manufacturer part number on file: 3M1275E4D20A (The Boeing Company Div Defense).
Key specifications for 3M1275E4D20A: Fastener Length: 1.719 INCHES NOMINAL IN; Thread Length: 0.469 INCHES NOMINAL IN; Head Style: FLAT COUNTERSUNK; Thread Direction: RIGHT-HAND. 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.