The Pin,grooved,headless, cataloged under National Stock Number 5315-01-166-0687, 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 11 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 | 5315-01-166-0687 |
| Primary Part Number | 7N2172 |
| Item Name | Pin,grooved,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Surface Finish | 1.6 MICRONS OUTSIDE DIAMETER |
| Undercut Width | 0.99 MILLIMETERS MINIMUM AND 1.14 MILLIMETERS MAXIMUM MM |
| Undercut Diameter | 3.63 MILLIMETERS MINIMUM AND 3.89 MILLIMETERS MAXIMUM MM |
| First End Location | BOTH ENDS |
| First End Style | SQUARE |
| Style Designator | GROOVE |
| Diameter | 4.7600 MILLIMETERS MINIMUM AND 4.7625 MILLIMETERS MAXIMUM MM |
| Second End Relationship with First End | IDENTICAL |
| Effective Length | 20.02 MILLIMETERS NOMINAL MM |
| Second Undercut Width | 0.99 MILLIMETERS MINIMUM AND 1.14 MILLIMETERS MAXIMUM MM |
| Material | STEEL 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 |
|---|---|
| 7N2172 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5315-01-166-0687 is a Pin,grooved,headless, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-166-0687 has 1 manufacturer part number on file: 7N2172 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 7N2172: Surface Finish: 1.6 MICRONS OUTSIDE DIAMETER; Undercut Width: 0.99 MILLIMETERS MINIMUM AND 1.14 MILLIMETERS MAXIMUM MM; Undercut Diameter: 3.63 MILLIMETERS MINIMUM AND 3.89 MILLIMETERS MAXIMUM MM; First End Location: BOTH ENDS. 11 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.