The Pin,spring, cataloged under National Stock Number 5315-01-291-2291, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-291-2291 |
| Primary Part Number | 31-S-078-0500 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Style Designator | SLOTTED |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Diameter | 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Material Thickness | 0.018 INCHES NOMINAL IN |
| Material | STEEL COMP 410 OR STEEL COMP 420 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 |
|---|---|
| 31-S-078-0500 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 10-3010 ITEM 21 | 5/9 Secondary reference L3 Technologies, Inc. |
| 31-S-078-0500 | 5/9 Secondary reference L3 Technologies, Inc. |
NSN 5315-01-291-2291 is a Pin,spring, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-291-2291 has 1 manufacturer part number on file: 31-S-078-0500 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 31-S-078-0500: Style Designator: SLOTTED; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Diameter: 0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN; Overall Length: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN. 5 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.