The Pin,shoulder,headless, cataloged under National Stock Number 5315-00-477-5440, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5315-00-477-5440 |
| Primary Part Number | SP-1556-1 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Shank Diameter | 0.125 INCHES NOMINAL IN |
| First End Location | BOTH ENDS |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| First End Style | SQUARE |
| Shank Length | 0.281 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Shoulder Diameter | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| SP-1556-1 PRIMARY | Breeze-Eastern Llc (USA) |
| Reference | Meaning |
|---|---|
| 0000155601 | 5/1 Secondary reference Breeze-Eastern Llc |
NSN 5315-00-477-5440 is a Pin,shoulder,headless, manufactured by Breeze-Eastern Llc, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-477-5440 has 1 manufacturer part number on file: SP-1556-1 (Breeze-Eastern Llc).
Key specifications for SP-1556-1: Shank Diameter: 0.125 INCHES NOMINAL IN; First End Location: BOTH ENDS; Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS FED SPEC 1ST TREATMENT RESPONSE OVERALL; First End Style: SQUARE. 11 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.