The Pin,spring, cataloged under National Stock Number 5315-00-271-7522, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Esna, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-271-7522 |
| Primary Part Number | 52-062-312-1187 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Esna, Llc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SLOTTED |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Diameter | 0.321 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Shear Strength | 11500 DOUBLE POUND |
| Material | STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1080 OR STEEL COMP 1086 OR STEEL COMP 1095 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 |
|---|---|
| 52-062-312-1187 PRIMARY | Esna, Llc (USA) |
| Reference | Meaning |
|---|---|
| MILP10971TYPE1C0MP0SITI0NA | 5/9 Secondary reference U.S. Government activity |
| MIL-P-10971 | 3/1 Design control — primary reference U.S. Government activity |
| 52-062-312-1188 | C/1 Advisory reference — outside the item-of-supply concept Harvard Industries Inc |
| 52-062-312-1187 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5315-00-271-7522 is a Pin,spring, manufactured by Esna, Llc, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-271-7522 has 1 manufacturer part number on file: 52-062-312-1187 (Esna, Llc).
Key specifications for 52-062-312-1187: Surface Treatment Document and Classification: QQ-P-416,TY2 CL3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: SLOTTED; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 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.
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.