The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-125-7489, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-125-7489 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Flange Diameter | 0.988 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | PS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.050 INCHES NOMINAL IN |
| Body Outside Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.205 INCHES NOMINAL IN |
| Body Inside Diameter | 0.750 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Bolt Circle Diameter | 1.000 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| 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 |
| Reference | Meaning |
|---|---|
| 10112471 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 36649 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-125-7489 is a Retainer,helical Compression Spr, classified under FSC 5340, Hardware, Commercial. Status: active.
Key specifications for 5340-01-125-7489: Flange Diameter: 0.988 INCHES MINIMUM AND 0.989 INCHES MAXIMUM IN; Overall Height: 1.290 INCHES NOMINAL IN; Surface Treatment Document and Classification: PS13001, MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE; Flange Thickness: 0.050 INCHES NOMINAL IN. 12 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.