The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-459-2773, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. Government technical data includes 10 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.
| Parameter | Value |
|---|---|
| NSN | 5340-00-459-2773 |
| Primary Part Number | 4CMT26 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon |
| Status | ACTIVE |
| First Step Diameter | 0.6500 INCHES MINIMUM AND 0.6505 INCHES MAXIMUM IN |
| End Diameter | 0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE |
| Surface Treatment | ANODIZE |
| Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 0.3900 INCHES MINIMUM IN |
| Material | ALUMINUM ALLOY 7075 |
| 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 |
|---|---|
| 4CMT26 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
NSN 5340-00-459-2773 is a Seat,helical Compression Spring, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-459-2773 has 1 manufacturer part number on file: 4CMT26 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
Key specifications for 4CMT26: Overall Height: 0.2160 INCHES NOMINAL IN; First Step Diameter: 0.6500 INCHES MINIMUM AND 0.6505 INCHES MAXIMUM IN; End Diameter: 0.4500 INCHES MINIMUM AND 0.4550 INCHES MAXIMUM IN; Distance From End to First Step: 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN. 10 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.