The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-034-3351, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-034-3351 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Flange Diameter | 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Material Hardness Rating | 32.0 ROCKWELL C MINIMUM |
| Body Outside Diameter | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Mounting Hole Diameter | 0.245 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.750 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN |
| Casehardening Indicator | CASEHARDENED |
| Material | STEEL |
| 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 |
| Reference | Meaning |
|---|---|
| 714919 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-034-3351 is a Retainer,helical Compression Spr, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-034-3351: Flange Diameter: 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN; Overall Height: 2.464 INCHES MINIMUM AND 2.488 INCHES MAXIMUM IN; Material Hardness Rating: 32.0 ROCKWELL C MINIMUM; Body Outside Diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN. 8 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.