The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-129-8203, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 21 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 | 5315-01-129-8203 |
| Primary Part Number | MBEU-69072 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Shank Diameter | 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN |
| Surface Finish | 64.0 MICROINCHES OUTSIDE DIAMETER |
| First End Countersink Diameter | 0.375 INCHES NOMINAL IN |
| Second End Countersink Diameter | 0.250 INCHES NOMINAL IN |
| First End Location | LARGE END |
| Second End Taper Angle | 45.0 DEGREES NOMINAL |
| Thread Length | 0.375 INCHES NOMINAL IN |
| First End Style | COUNTERSUNK |
| Shank Length | 2.937 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Second End Taper Length | 0.078 INCHES NOMINAL IN |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Countersink Angle | 90.0 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Shoulder Diameter | 0.552 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN |
| Second End Style | CHAMFERED AND COUNTERSUNK |
| Thread Class | 2B |
| Second End Countersink Angle | 90.0 DEGREES NOMINAL |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| MBEU-69072 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5315-01-129-8203 is a Pin,shoulder,headless, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-129-8203 has 1 manufacturer part number on file: MBEU-69072 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU-69072: Shank Diameter: 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN; Surface Finish: 64.0 MICROINCHES OUTSIDE DIAMETER; First End Countersink Diameter: 0.375 INCHES NOMINAL IN; Second End Countersink Diameter: 0.250 INCHES NOMINAL IN. 21 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.