The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-753-9323, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-753-9323 |
| Primary Part Number | 7539323 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| First Step Diameter | 1.0480 INCHES MINIMUM AND 1.0520 INCHES MAXIMUM IN |
| End Diameter | 0.7190 INCHES NOMINAL IN |
| Distance From End to First Step | 0.2810 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material Document and Classification | SAE 1010 ASSN STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | TIN |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | STEEL COMP 1010 |
| 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 |
|---|---|
| 7539323 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| C12934B | 3/9 Design control — primary reference Haldex Brake Products Corporation |
| 1671M5 | 5/9 Secondary reference Diamond Reo Truck Co |
NSN 5340-00-753-9323 is a Seat,helical Compression Spring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-753-9323 has 1 manufacturer part number on file: 7539323 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 7539323: Overall Height: 0.5620 INCHES NOMINAL IN; First Step Diameter: 1.0480 INCHES MINIMUM AND 1.0520 INCHES MAXIMUM IN; End Diameter: 0.7190 INCHES NOMINAL IN; Distance From End to First Step: 0.2810 INCHES NOMINAL IN. 8 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.