The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-319-0510, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-319-0510 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| FSC Application Data | ACFT AIR CONDITIONING SYSTEM |
| End Diameter | 1.9150 INCHES MINIMUM AND 1.9250 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE I OR TYPE II MIL SPEC SINGLE TREATMENT RESPONSE |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-225/4, ALLOY 2014, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.0560 INCHES MINIMUM AND 0.0660 INCHES MAXIMUM IN |
| Counterbore Diameter | 1.5600 INCHES MINIMUM AND 1.5700 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Spherical Seat Top Radius | 0.0100 INCHES NOMINAL IN |
| Bore Diameter | 0.1400 INCHES MINIMUM AND 0.1450 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2014 |
| 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 |
|---|---|
| S9405-12 | 3/2 Design control — primary reference U.S. Government activity |
| S9405-12 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
NSN 5340-00-319-0510 is a Seat,helical Compression Spring, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-00-319-0510: Overall Height: 0.1380 INCHES MINIMUM AND 0.1480 INCHES MAXIMUM IN; FSC Application Data: ACFT AIR CONDITIONING SYSTEM; End Diameter: 1.9150 INCHES MINIMUM AND 1.9250 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE I OR TYPE II MIL SPEC SINGLE TREATMENT RESPONSE. 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.