The Pin,straight,headed, cataloged under National Stock Number 5315-01-516-0313, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-516-0313 |
| Primary Part Number | SP4Z-A11 |
| Item Name | Pin,straight,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Chamfer Length | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Under Head Length | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Pin Chamfer Angle | 1.0 RADIANS NOMINAL |
| Style Designator | STRAIGHT |
| Pin Head Diameter | 0.240 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Diameter | 0.156 INCHES NOMINAL IN |
| Head Style | FLAT |
| Height | 0.400 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-01-516-0313 is a Pin,straight,headed, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-516-0313 has 2 manufacturer part numbers on file: SP4Z-A11 (Martin-Baker Aircraft Company Limited), SP4Z-A11 (Martin-Baker America Inc).
Key specifications for SP4Z-A11: Chamfer Length: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Under Head Length: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Pin Chamfer Angle: 1.0 RADIANS NOMINAL; Style Designator: STRAIGHT. 9 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.
NSN 5315-01-516-0313 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.