The Pin,straight,headless, cataloged under National Stock Number 5315-00-004-3597, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 14 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 | 5315-00-004-3597 |
| Primary Part Number | 78127-18 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Triumph Engine Control Systems Llc |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES OUTSIDE DIAMETER |
| Surface Finish | 125.0 MICROINCHES BOTH ENDS |
| First End Taper Length | 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN |
| First End Style | CHAMFERED |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 4.0 DEGREES MINIMUM AND 12.0 DEGREES MAXIMUM |
| Pin Overall Diameter | 0.2501 INCHES MINIMUM AND 0.2503 INCHES MAXIMUM IN |
| Pin Overall Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Style | RADIUS |
| Material | STEEL COMP 416F OVERALL |
| Second End Corner Radius | 0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN |
| First End Corner Radius | 0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 78127-18 PRIMARY | Triumph Engine Control Systems Llc (USA) |
NSN 5315-00-004-3597 is a Pin,straight,headless, manufactured by Triumph Engine Control Systems Llc, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-004-3597 has 1 manufacturer part number on file: 78127-18 (Triumph Engine Control Systems Llc).
Key specifications for 78127-18: Surface Finish: 16.0 MICROINCHES OUTSIDE DIAMETER; Surface Finish: 125.0 MICROINCHES BOTH ENDS; First End Taper Length: 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN; First End Style: CHAMFERED. 14 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.