The Bolt,assembled Washer, cataloged under National Stock Number 5306-01-449-8810, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 19 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 | 5306-01-449-8810 |
| Primary Part Number | 70219-42506-043 |
| Item Name | Bolt,assembled Washer |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Head Height | 0.745 INCHES NOMINAL IN |
| Fastener Length | 3.910 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 2.900 INCHES NOMINAL IN |
| Thread Length | 1.010 INCHES NOMINAL IN |
| Hardness Rating | 22.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM FASTENER |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM LOCKING FEATURE IN |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | HEXAGON |
| Primary Washer Style | FLAT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.100 INCHES NOMINAL IN |
| Width Between Flats | 1.428 INCHES MINIMUM AND 1.441 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4340 FASTENER |
| Material | ALUMINUM ALLOY 7075 PRIMARY WASHER |
| Thread Series Designator | UNF |
| Washer Quantity | 1 |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.620 INCHES NOMINAL LOCKING FEATURE 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 |
|---|---|
| 70219-42506-043 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5306-01-449-8810 is a Bolt,assembled Washer, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-449-8810 has 1 manufacturer part number on file: 70219-42506-043 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70219-42506-043: Head Height: 0.745 INCHES NOMINAL IN; Fastener Length: 3.910 INCHES NOMINAL IN; Primary Washer Outside Diameter: 2.900 INCHES NOMINAL IN; Thread Length: 1.010 INCHES NOMINAL IN. 19 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.