The Pin,straight,headed, cataloged under National Stock Number 5315-00-052-3540, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-052-3540 |
| Primary Part Number | SP4YA2 |
| Item Name | Pin,straight,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Chamfer Length | 0.056 INCHES NOMINAL IN |
| Hole Arrangement Style | ONE END DRILLED |
| Under Head Length | 0.420 INCHES NOMINAL IN |
| Pin Chamfer Angle | 30.0 DEGREES NOMINAL |
| First Hole Diameter | 0.064 INCHES NOMINAL IN |
| Style Designator | STRAIGHT |
| Pin Head Diameter | 0.250 INCHES NOMINAL IN |
| Diameter | 0.156 INCHES NOMINAL IN |
| Head Style | PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION) |
| Height | 0.050 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR ZINC 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 |
| Part Number | Manufacturer |
|---|---|
| SP4YA2 PRIMARY | Bsi Standards Limited (GBR) |
| Reference | Meaning |
|---|---|
| 99-1009706 | 6/9 Informative reference only U.S. Government activity |
NSN 5315-00-052-3540 is a Pin,straight,headed, manufactured by Bsi Standards Limited, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-052-3540 has 1 manufacturer part number on file: SP4YA2 (Bsi Standards Limited).
Key specifications for SP4YA2: Chamfer Length: 0.056 INCHES NOMINAL IN; Hole Arrangement Style: ONE END DRILLED; Under Head Length: 0.420 INCHES NOMINAL IN; Pin Chamfer Angle: 30.0 DEGREES NOMINAL. 13 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.