The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-328-1788, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-328-1788 |
| Primary Part Number | 2E3-248 DETAIL 35-D |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Flange Thickness | 0.625 INCHES NOMINAL IN |
| Body Outside Diameter | 3.500 INCHES NOMINAL IN |
| Style Designator | PARALLEL |
| Mounting Hole Diameter | 0.438 INCHES NOMINAL IN |
| Body Inside Diameter | 2.875 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Bolt Circle Diameter | 4.250 INCHES NOMINAL IN |
| End Hole Diameter | 0.750 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 |
| Part Number | Manufacturer |
|---|---|
| 573-5532385-14 | Naval Sea Systems Command (USA) |
| 2E3-248 PIECE 14 | Lake Shore Systems, Inc. (USA) |
| 2E3-248 DETAIL 35-D PRIMARY | Lake Shore Systems, Inc. (USA) |
NSN 5340-01-328-1788 is a Retainer,helical Compression Spr, manufactured by Lake Shore Systems, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-328-1788 has 3 manufacturer part numbers on file: 573-5532385-14 (Naval Sea Systems Command), 2E3-248 PIECE 14 (Lake Shore Systems, Inc.), 2E3-248 DETAIL 35-D (Lake Shore Systems, Inc.).
Key specifications for 2E3-248 DETAIL 35-D: Overall Height: 3.125 INCHES NOMINAL IN; Flange Thickness: 0.625 INCHES NOMINAL IN; Body Outside Diameter: 3.500 INCHES NOMINAL IN; Style Designator: PARALLEL. 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.