The Clip,spring Tension, cataloged under National Stock Number 5340-01-339-1143, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lyons Tool & Die Company,the Dba Lyons Tool & Die Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-339-1143 |
| Primary Part Number | 5285052-001 |
| Item Name | Clip,spring Tension |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lyons Tool & Die Company,the Dba Lyons Tool & Die Co |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Mounting Method | UNTHREADED HOLE(S) |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Material Thickness | 0.017 INCHES NOMINAL IN |
| Surface Treatment | OXIDE OVERALL |
| Width | 1.000 INCHES NOMINAL IN |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.187 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 5285052-001 PRIMARY | Lyons Tool & Die Company,the Dba Lyons Tool & Die Co (USA) |
| Reference | Meaning |
|---|---|
| 5285052-001 | 5/9 Secondary reference Sci Technology, Inc |
NSN 5340-01-339-1143 is a Clip,spring Tension, manufactured by Lyons Tool & Die Company,the Dba Lyons Tool & Die Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-339-1143 has 1 manufacturer part number on file: 5285052-001 (Lyons Tool & Die Company,the Dba Lyons Tool & Die Co).
Key specifications for 5285052-001: Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Mounting Method: UNTHREADED HOLE(S); Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.