The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-201-9842, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Woodward, Inc. Div Fuel Systems and Controls. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-201-9842 |
| Primary Part Number | 3445-032 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Woodward, Inc. Div Fuel Systems and Controls |
| Status | ACTIVE |
| First Step Diameter | 1.3065 INCHES MINIMUM AND 1.3095 INCHES MAXIMUM IN |
| End Diameter | 0.7150 INCHES MINIMUM AND 0.7170 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.1100 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.1560 INCHES NOMINAL IN |
| Counterbore Diameter | 1.0000 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.6250 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3445-032 PRIMARY | Woodward, Inc. Div Fuel Systems and Controls (USA) |
NSN 5340-01-201-9842 is a Seat,helical Compression Spring, manufactured by Woodward, Inc. Div Fuel Systems and Controls, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-201-9842 has 1 manufacturer part number on file: 3445-032 (Woodward, Inc. Div Fuel Systems and Controls).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-666-3271. Verify interchangeability with system specifications before substitution.
Key specifications for 3445-032: Overall Height: 0.3440 INCHES NOMINAL IN; First Step Diameter: 1.3065 INCHES MINIMUM AND 1.3095 INCHES MAXIMUM IN; End Diameter: 0.7150 INCHES MINIMUM AND 0.7170 INCHES MAXIMUM IN; Distance From End to First Step: 0.1100 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.