The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-498-3867, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-498-3867 |
| Primary Part Number | 10937420 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Ridge Height | 0.1730 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN |
| Depression Depth | 0.3750 INCHES NOMINAL IN |
| FSC Application Data | FUEL DISPENSING EQUIPMENT |
| First Step Diameter | 4.0400 INCHES MINIMUM AND 4.0500 INCHES MAXIMUM IN |
| End Diameter | 2.4680 INCHES MINIMUM AND 2.4700 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.1550 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Material Document and Classification | QQ-B-671,CLASS 1,COND OPT FED SPEC SINGLE MATERIAL RESPONSE OR SAE 68ACOND OPT ASSN STD SINGLE MATERIAL RESPONSE |
| Counterbore Length | 0.2500 INCHES NOMINAL IN |
| Counterbore Diameter | 3.8750 INCHES MINIMUM AND 3.8800 INCHES MAXIMUM IN |
| Distance From Center to Beginning of Ridge | 1.9370 INCHES MINIMUM AND 1.9400 INCHES MAXIMUM IN |
| Bore Diameter | 0.6250 INCHES NOMINAL IN |
| Material | COPPER ALLOY 952 |
| 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 |
|---|---|
| 10937420 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 4930004983867 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5340-00-498-3867 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 5340-00-498-3867 has 1 manufacturer part number on file: 10937420 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10937420: Ridge Height: 0.1730 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN; Depression Depth: 0.3750 INCHES NOMINAL IN; Overall Height: 0.5300 INCHES NOMINAL IN; FSC Application Data: FUEL DISPENSING EQUIPMENT. 14 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.