The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-028-1903, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-028-1903 |
| Primary Part Number | 3162684-2 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| First Step Diameter | 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN |
| End Diameter | 0.0750 INCHES MINIMUM AND 0.0850 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.3350 INCHES NOMINAL IN |
| Design Type | SPLIT |
| Style Designator | SEAT |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.1550 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN |
| Second Step Diameter | 0.5700 INCHES MINIMUM AND 0.5800 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.1590 INCHES MINIMUM AND 0.1610 INCHES MAXIMUM IN |
| First Step Length | 0.1000 INCHES NOMINAL IN |
| Bore Diameter | 0.1590 INCHES MINIMUM AND 0.1610 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 |
| 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 |
|---|---|
| 3162684-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3162684-2 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-028-1903 is a Seat,helical Compression Spring, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-028-1903 has 1 manufacturer part number on file: 3162684-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3162684-2: Overall Height: 0.3450 INCHES MINIMUM AND 0.3550 INCHES MAXIMUM IN; First Step Diameter: 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN; End Diameter: 0.0750 INCHES MINIMUM AND 0.0850 INCHES MAXIMUM IN; Distance From End to First Step: 0.3350 INCHES NOMINAL IN. 12 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.