The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-444-5517, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Marvin Engineering Co, Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-444-5517 |
| Primary Part Number | 7002568-1 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Marvin Engineering Co, Inc |
| Status | ACTIVE |
| Flange Diameter | 1.600 INCHES NOMINAL IN |
| Body Outside Diameter | 0.942 INCHES NOMINAL IN |
| Style Designator | PARALLEL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 0.746 INCHES MINIMUM AND 0.750 INCHES MAXIMUM 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 |
| Part Number | Manufacturer |
|---|---|
| 7002568-1 PRIMARY | Marvin Engineering Co, Inc (USA) |
| Reference | Meaning |
|---|---|
| 7002568-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5340-01-444-5517 is a Retainer,helical Compression Spr, manufactured by Marvin Engineering Co, Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-444-5517 has 1 manufacturer part number on file: 7002568-1 (Marvin Engineering Co, Inc).
Key specifications for 7002568-1: Flange Diameter: 1.600 INCHES NOMINAL IN; Overall Height: 1.372 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN; Body Outside Diameter: 0.942 INCHES NOMINAL IN; Style Designator: PARALLEL. 7 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.