The Bolt,shoulder, cataloged under National Stock Number 5306-00-564-4571, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 17 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 | 5306-00-564-4571 |
| Primary Part Number | 227471Y23 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Head Height | 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Shoulder Length | 0.575 INCHES NOMINAL FIRST SHOULDER IN |
| Distance From Centerline to Flat | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.509 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.545 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.720 INCHES MINIMUM AND 0.750 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 |
|---|---|
| 227471Y23 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 5306-00-564-4571 is a Bolt,shoulder, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-564-4571 has 1 manufacturer part number on file: 227471Y23 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 227471Y23: Head Height: 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN; Shoulder Length: 0.575 INCHES NOMINAL FIRST SHOULDER IN; Distance From Centerline to Flat: 0.260 INCHES MINIMUM AND 0.270 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.