The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-199-3521, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mgm Brakes Inc Div Indian Head Industries Inc. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-199-3521 |
| Primary Part Number | 8024001 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mgm Brakes Inc Div Indian Head Industries Inc |
| Status | ACTIVE |
| First Step Diameter | 3.56650 INCHES MINIMUM AND 3.6850 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ES 1011-B4 FSCM 15564 MFR REF SINGLE TREATMENT RESPONSE |
| Distance From End to First Step | 1.0120 INCHES NOMINAL IN |
| Design Type | SOLID |
| Material Document and Classification | SAE 1006 ASSN STD 1ST MATERIAL RESPONSE AND SAE 1008 ASSN STD 2ND MATERIAL RESPONSE OR DSTM A620 ASSN STD SINGLE MATERIAL RESPONSE |
| Surface Treatment | PHOSPHATE |
| Bore Diameter | 1.8450 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN |
| Material | STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL |
| 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 |
|---|---|
| 8024001 PRIMARY | Mgm Brakes Inc Div Indian Head Industries Inc (USA) |
NSN 5340-01-199-3521 is a Seat,helical Compression Spring, manufactured by Mgm Brakes Inc Div Indian Head Industries Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-199-3521 has 1 manufacturer part number on file: 8024001 (Mgm Brakes Inc Div Indian Head Industries Inc).
Key specifications for 8024001: Overall Height: 1.0450 INCHES MINIMUM AND 1.0750 INCHES MAXIMUM IN; First Step Diameter: 3.56650 INCHES MINIMUM AND 3.6850 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ES 1011-B4 FSCM 15564 MFR REF SINGLE TREATMENT RESPONSE; Distance From End to First Step: 1.0120 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.