The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-00-166-8742, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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 | 5340-00-166-8742 |
| Primary Part Number | 2523913 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Thickness | 0.156 INCHES NOMINAL IN |
| Body Outside Diameter | 0.779 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN |
| Material Document and Classification | 6061-T6 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A505 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A506 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A507 ASSN STD 1ST MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.170 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| Body Inside Diameter | 0.500 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Bolt Circle Diameter | 1.312 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 OR ALUMINUM ALLOY |
| 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 |
|---|---|
| 2523913 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5340-00-166-8742 is a Retainer,helical Compression Spr, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-166-8742 has 1 manufacturer part number on file: 2523913 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2523913: Overall Height: 0.312 INCHES NOMINAL IN; Flange Thickness: 0.156 INCHES NOMINAL IN; Body Outside Diameter: 0.779 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN; Material Document and Classification: 6061-T6 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A505 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A506 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A507 ASSN STD 1ST MATERIAL RESPONSE. 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.