The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-209-2890, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-209-2890 |
| Primary Part Number | 74A661255-2009 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Surface Finish | 63.0 MICROINCHES ALL OTHER SURFACES |
| Surface Finish | 8.0 MICROINCHES LARGE SHANK |
| Surface Finish | 8.0 MICROINCHES SHANK END |
| First End Taper Length | 0.050 INCHES NOMINAL IN |
| Second End Countersink Diameter | 0.438 INCHES NOMINAL IN |
| First End Location | UNTHREADED END |
| Hole Arrangement Style | ONE END DRILLED |
| Thread Length | 0.380 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.191 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Shank Length | 1.775 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Shoulder Diameter | 0.750 INCHES NOMINAL IN |
| Second End Style | COUNTERSUNK |
| Thread Class | 3B |
| Second End Countersink Angle | 59.5 DEGREES MINIMUM AND 60.5 DEGREES MAXIMUM |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Centerline of Hole to End of Pin | 3.900 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 |
| Part Number | Manufacturer |
|---|---|
| 74A661255-2009 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 74A661255-2009 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 10123215 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5315-01-209-2890 is a Pin,shoulder,headless, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-209-2890 has 1 manufacturer part number on file: 74A661255-2009 (The Boeing Company Div Defense).
Key specifications for 74A661255-2009: Shank Diameter: 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN; Surface Finish: 63.0 MICROINCHES ALL OTHER SURFACES; Surface Finish: 8.0 MICROINCHES LARGE SHANK; Surface Finish: 8.0 MICROINCHES SHANK END. 24 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.