The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-010-9961, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is W and G Machine Company, Incorporated. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-010-9961 |
| Primary Part Number | S6165-61610 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | W and G Machine Company, Incorporated |
| Status | ACTIVE |
| First Step Diameter | 0.9370 INCHES NOMINAL IN |
| End Diameter | 0.5000 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1850 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.3800 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 |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| S6165-61610 PRIMARY | W and G Machine Company, Incorporated (USA) |
| S6165-61610 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5340-00-010-9961 is a Seat,helical Compression Spring, manufactured by W and G Machine Company, Incorporated, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-010-9961 has 2 manufacturer part numbers on file: S6165-61610 (W and G Machine Company, Incorporated), S6165-61610 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6165-61610: First Step Diameter: 0.9370 INCHES NOMINAL IN; End Diameter: 0.5000 INCHES NOMINAL IN; Distance From End to First Step: 0.1850 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.