The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-166-6947, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 9 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-166-6947 |
| Primary Part Number | 4T4267 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| First Step Diameter | 49.5 MILLIMETERS MINIMUM AND 50.5 MILLIMETERS MAXIMUM MM |
| End Diameter | 36.12 MILLIMETERS MINIMUM AND 36.38 MILLIMETERS MAXIMUM MM |
| Distance From End to First Step | 5.87 MILLIMETERS MINIMUM AND 6.13 MILLIMETERS MAXIMUM MM |
| Design Type | SOLID |
| Material Document and Classification | 1E303,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.87 MILLIMETERS MINIMUM AND 1.13 MILLIMETERS MAXIMUM MM |
| Counterbore Diameter | 31.8 MILLIMETERS MINIMUM AND 32.2 MILLIMETERS MAXIMUM MM |
| Bore Diameter | 26.75 MILLIMETERS MINIMUM AND 27.25 MILLIMETERS MAXIMUM MM |
| Material | STEEL COMP 1215 |
| 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 |
|---|---|
| 4T4267 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 5340-01-166-6947 is a Seat,helical Compression Spring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-166-6947 has 1 manufacturer part number on file: 4T4267 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 4T4267: Overall Height: 32.07 MILLIMETERS MINIMUM AND 32.33 MILLIMETERS MAXIMUM MM; First Step Diameter: 49.5 MILLIMETERS MINIMUM AND 50.5 MILLIMETERS MAXIMUM MM; End Diameter: 36.12 MILLIMETERS MINIMUM AND 36.38 MILLIMETERS MAXIMUM MM; Distance From End to First Step: 5.87 MILLIMETERS MINIMUM AND 6.13 MILLIMETERS MAXIMUM MM. 9 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.