The Pin,spring, cataloged under National Stock Number 5315-01-579-6777, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd Div Defense, Space & Security. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5315-01-579-6777 |
| Primary Part Number | MS51923-45 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Boeing Defence Australia Ltd Div Defense, Space & Security |
| Status | ACTIVE |
| 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 |
|---|---|
| MS51923-45 | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| MS51923-45 | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| MS51923-45 | 5/2 Secondary reference U.S. Government activity |
| MS51923-45 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-579-6777 is a Pin,spring, manufactured by Boeing Defence Australia Ltd Div Defense, Space & Security, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-579-6777 has 2 manufacturer part numbers on file: MS51923-45 (Boeing Defence Australia Ltd Div Defense, Space & Security), MS51923-45 (Boeing Defence Australia Ltd).
Key specifications for MS51923-45: Part Name Assigned by Controlling Agency: PIN, SPRING. 0 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.