The Lock Spring,turnlock Fastener, cataloged under National Stock Number 5325-01-178-5039, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Southco Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Lock Spring,turnlock Fastener |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Southco Inc (CAGE 72794); The Boeing Company (CAGE 8V613) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-178-5039 |
| Primary Part Number | 1219-A5275-Z3Y |
| Item Name | Lock Spring,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Southco Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1219-A5275-Z3Y PRIMARY | Southco Inc (USA) |
| HS5273-0004 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| HS5273-0004 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| S5A-275 | 5/9 Secondary reference Southco Inc |
NSN 5325-01-178-5039 is a Lock Spring,turnlock Fastener, manufactured by Southco Inc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-178-5039 has 2 manufacturer part numbers on file: 1219-A5275-Z3Y (Southco Inc), HS5273-0004 (The Boeing Company).
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.