The Pin,spring, cataloged under National Stock Number 5315-01-044-7128, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5315-01-044-7128 |
| Primary Part Number | Y178-56 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Ingersoll-Rand Company Dba Ingersoll-Rand |
| Status | ACTIVE |
| Style Designator | SLOTTED |
| Diameter | 0.162 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN |
| Material Thickness | 0.032 INCHES NOMINAL IN |
| 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 |
|---|---|
| Y178-56 | Air Power Inc (USA) |
| Y178-56 PRIMARY | Ingersoll-Rand Company Dba Ingersoll-Rand (USA) |
| Reference | Meaning |
|---|---|
| Y178-56 | C/1 Advisory reference — outside the item-of-supply concept Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division |
NSN 5315-01-044-7128 is a Pin,spring, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-044-7128 has 2 manufacturer part numbers on file: Y178-56 (Air Power Inc), Y178-56 (Ingersoll-Rand Company Dba Ingersoll-Rand).
Key specifications for Y178-56: Style Designator: SLOTTED; Diameter: 0.162 INCHES MINIMUM AND 0.167 INCHES MAXIMUM IN; Overall Length: 0.750 INCHES NOMINAL IN; Material Thickness: 0.032 INCHES NOMINAL IN. 4 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.