The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-198-5170, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-198-5170 |
| Primary Part Number | 164B8455P1 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Ridge Height | 0.0300 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM IN |
| First Step Diameter | 1.1250 INCHES MINIMUM AND 1.1450 INCHES MAXIMUM IN |
| End Diameter | 0.7440 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.3100 INCHES MINIMUM AND 0.3400 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.3100 INCHES MINIMUM AND 0.3300 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.6200 INCHES MINIMUM AND 0.6400 INCHES MAXIMUM IN |
| Bore Diameter | 0.1350 INCHES MINIMUM AND 0.1490 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 164B8455P1 | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| 164B8455P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-198-5170 is a Seat,helical Compression Spring, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-198-5170 has 1 manufacturer part number on file: 164B8455P1 (The Boeing Company Div Legacy Am&m).
Key specifications for 164B8455P1: Ridge Height: 0.0300 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM IN; Overall Height: 0.3800 INCHES NOMINAL IN; First Step Diameter: 1.1250 INCHES MINIMUM AND 1.1450 INCHES MAXIMUM IN; End Diameter: 0.7440 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM 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.