The Pin,spring, cataloged under National Stock Number 5315-01-436-6255, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Spirol International Corporation. Government technical data includes 5 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 | 5315-01-436-6255 |
| Primary Part Number | 031-0188MDP |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Spirol International Corporation |
| Status | ACTIVE |
| Expanded Diameter | 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN |
| Style Designator | COILED |
| Diameter | 0.031 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 OR STEEL COMP 1095 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 |
|---|---|
| 031-0188MDP PRIMARY | Spirol International Corporation (USA) |
NSN 5315-01-436-6255 is a Pin,spring, manufactured by Spirol International Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-436-6255 has 1 manufacturer part number on file: 031-0188MDP (Spirol International Corporation).
Key specifications for 031-0188MDP: Expanded Diameter: 0.033 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN; Style Designator: COILED; Diameter: 0.031 INCHES NOMINAL IN; Overall Length: 0.188 INCHES NOMINAL IN. 5 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.