The Bolt,shoulder, cataloged under National Stock Number 5306-00-403-1899, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Cm Manufacturing Inc Dba Cm Manufacturing Inc. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-403-1899 |
| Primary Part Number | 4Y1009-105A |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Cm Manufacturing Inc Dba Cm Manufacturing Inc |
| Status | ACTIVE |
| Head Height | 0.220 INCHES NOMINAL IN |
| Fastener Length | 2.098 INCHES NOMINAL IN |
| Shoulder Length | 0.100 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.340 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM FIRST HOLE IN |
| Hole Configuration Style | SQUARE LONGITUDINAL HOLE |
| Material Document and Classification | MIL-S-6709 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.094 INCHES MINIMUM AND 1.098 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Hole Quantity | 2 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.241 INCHES NOMINAL FIRST HOLE IN |
| Hole Type | DRILLED |
| Hole Diameter | 0.500 INCHES MINIMUM AND 0.510 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 |
|---|---|
| 4Y1009-105A | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 4Y01009-105A | Cm Manufacturing Inc Dba Cm Manufacturing Inc (USA) |
| 4Y01009-105A | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 4Y01009-105A | Thomas Instrument, Incorporated (USA) |
| 4Y1009-105A | Thomas Instrument, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 4Y01009-105A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-403-1899 is a Bolt,shoulder, manufactured by Cm Manufacturing Inc Dba Cm Manufacturing Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-403-1899 has 5 manufacturer part numbers on file: 4Y1009-105A (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 4Y01009-105A (Cm Manufacturing Inc Dba Cm Manufacturing Inc), 4Y01009-105A (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), 4Y01009-105A (Thomas Instrument, Incorporated), 4Y1009-105A (Thomas Instrument, Incorporated).
Key specifications for 4Y1009-105A: Head Height: 0.220 INCHES NOMINAL IN; Fastener Length: 2.098 INCHES NOMINAL IN; Shoulder Length: 0.100 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.472 INCHES MINIMUM AND 0.482 INCHES MAXIMUM FIRST SHOULDER IN. 21 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.