The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-335-4819, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Marvin Engineering Co, Inc. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-335-4819 |
| Primary Part Number | 3825048-1 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Marvin Engineering Co, Inc |
| Status | ACTIVE |
| First Step Diameter | 1.5000 INCHES NOMINAL IN |
| End Diameter | 0.7500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE AND QQ-P-35, TYPE 2 FED SPEC 2ND TREATMENT RESPONSE |
| Distance From End to First Step | 0.2500 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.4000 INCHES NOMINAL IN |
| Material | STEEL COMP 630 |
| 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 |
|---|---|
| 3825048-1 | Marvin Engineering Co, Inc (USA) |
| 3825048-1 | Southern Manufacturing Technologies, Inc Dba Southern Manufacturing Technologies Inc (USA) |
| 3825048-1 | Rockford Burrall Machine Co. Inc (USA) |
| 3825048-1 | Vector Design and Mfg Inc (USA) |
| Reference | Meaning |
|---|---|
| 10163471 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 3825048-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-335-4819 is a Seat,helical Compression Spring, manufactured by Marvin Engineering Co, Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-335-4819 has 4 manufacturer part numbers on file: 3825048-1 (Marvin Engineering Co, Inc), 3825048-1 (Southern Manufacturing Technologies, Inc Dba Southern Manufacturing Technologies Inc), 3825048-1 (Rockford Burrall Machine Co. Inc), 3825048-1 (Vector Design and Mfg Inc).
Key specifications for 3825048-1: Overall Height: 0.3750 INCHES NOMINAL IN; First Step Diameter: 1.5000 INCHES NOMINAL IN; End Diameter: 0.7500 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE AND QQ-P-35, TYPE 2 FED SPEC 2ND TREATMENT RESPONSE. 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.