The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-494-2131, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-494-2131 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Flange Diameter | 14.188 INCHES NOMINAL IN |
| Flange Thickness | 0.059 INCHES NOMINAL IN |
| Body Outside Diameter | 13.063 INCHES NOMINAL IN |
| Style Designator | PARALLEL |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Body Inside Diameter | 12.844 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.059 INCHES NOMINAL IN |
| Bolt Circle Diameter | 13.625 INCHES NOMINAL IN |
| Material | STEEL |
| End Hole Diameter | 3.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 76564 | 3/9 Design control — primary reference Ingersoll-Rand Company Dba Ingersoll-Rand |
NSN 5340-00-494-2131 is a Retainer,helical Compression Spr, classified under FSC 5340, Hardware, Commercial. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-106-6441. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-494-2131: Flange Diameter: 14.188 INCHES NOMINAL IN; Overall Height: 1.438 INCHES NOMINAL IN; Flange Thickness: 0.059 INCHES NOMINAL IN; Body Outside Diameter: 13.063 INCHES NOMINAL IN. 11 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.