The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-103-1897, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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 | 5315-01-103-1897 |
| Primary Part Number | 3D9779 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Second Shank Diameter | 0.500 INCHES NOMINAL IN |
| Undercut Width | 0.154 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Undercut Diameter | 0.781 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN |
| First End Location | BOTH ENDS |
| First End Style | SQUARE |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Shoulder Diameter | 1.225 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN |
| Second Shank Length | 1.970 INCHES NOMINAL IN |
| Material | STEEL COMP 1215 OVERALL |
| 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 |
|---|---|
| 3D9779 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5315-01-103-1897 is a Pin,shoulder,headless, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-103-1897 has 1 manufacturer part number on file: 3D9779 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3D9779: Second Shank Diameter: 0.500 INCHES NOMINAL IN; Undercut Width: 0.154 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN; Undercut Diameter: 0.781 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN; First End Location: BOTH ENDS. 10 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.