The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-085-3918, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Aerospace Canada Ltd. Government technical data includes 11 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-085-3918 |
| Primary Part Number | 5330-5 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Goodrich Aerospace Canada Ltd |
| Status | ACTIVE |
| Countersink Angle in Deg | 45.0 |
| First Step Diameter | 0.7080 INCHES MINIMUM AND 0.7180 INCHES MAXIMUM IN |
| End Diameter | 0.5000 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Countersink Diameter | 0.3000 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Second End Diameter | 0.6080 INCHES MINIMUM AND 0.6380 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.0260 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Surface Treatment | CADMIUM |
| Bore Diameter | 0.2500 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 5330-5 PRIMARY | Goodrich Aerospace Canada Ltd (CAN) |
NSN 5340-00-085-3918 is a Seat,helical Compression Spring, manufactured by Goodrich Aerospace Canada Ltd, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-085-3918 has 1 manufacturer part number on file: 5330-5 (Goodrich Aerospace Canada Ltd).
2 possible matches (shared part number, not a government interchangeability claim): 5815-00-393-1932, 5340-01-459-0808. Verify interchangeability with system specifications before substitution.
Key specifications for 5330-5: Overall Height: 0.0880 INCHES MINIMUM AND 0.0930 INCHES MAXIMUM IN; Countersink Angle in Deg: 45.0; First Step Diameter: 0.7080 INCHES MINIMUM AND 0.7180 INCHES MAXIMUM IN; End Diameter: 0.5000 INCHES NOMINAL IN. 11 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.