The Pin,straight,headed, cataloged under National Stock Number 5315-00-135-9571, 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 15 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 | 5315-00-135-9571 |
| Primary Part Number | 5SP4YB3 |
| Item Name | Pin,straight,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Chamfer Length | 0.057 INCHES NOMINAL IN |
| Hole Arrangement Style | ONE END DRILLED |
| Under Head Length | 0.470 INCHES NOMINAL IN |
| Pin Chamfer Angle | 15.0 DEGREES NOMINAL |
| First Hole Diameter | 0.064 INCHES NOMINAL IN |
| Hardness Rating | 248.0 BRINELL STANDARD MINIMUM AND 302.0 BRINELL STANDARD MAXIMUM OVERALL |
| Style Designator | STRAIGHT |
| Pin Head Diameter | 0.303 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Material Document and Classification | S105 FSCM 05901 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.188 INCHES NOMINAL IN |
| Head Style | FLAT |
| Height | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.088 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-00-135-9571 is a Pin,straight,headed, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-135-9571 has 2 manufacturer part numbers on file: 5SP4YB3 (Martin-Baker Aircraft Company Limited), 5SP4YB3 (Bsi Standards Limited).
Key specifications for 5SP4YB3: Chamfer Length: 0.057 INCHES NOMINAL IN; Hole Arrangement Style: ONE END DRILLED; Under Head Length: 0.470 INCHES NOMINAL IN; Pin Chamfer Angle: 15.0 DEGREES NOMINAL. 15 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.