The Pin,spring, cataloged under National Stock Number 5315-01-160-4640, 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 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-160-4640 |
| Primary Part Number | 1T550 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Material Document and Classification | 1E575,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 7.94 MILLIMETERS NOMINAL 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 |
NSN 5315-01-160-4640 is a Pin,spring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-160-4640 has 2 manufacturer part numbers on file: 1T0550 (Caterpillar Inc Div Caterpillar Defense), 1T550 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 1T550: Material Document and Classification: 1E575,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Diameter: 7.94 MILLIMETERS NOMINAL MM; Overall Length: 25.4 MILLIMETERS NOMINAL MM; Material: STEEL OVERALL. 3 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.