The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-084-7378, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-084-7378 |
| Primary Part Number | 2775259-101 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Flange Diameter | 1.090 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.090 INCHES NOMINAL IN |
| Body Outside Diameter | 0.560 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766, 300 SERIES FED SPEC SINGLE MATERIAL RESPONSE |
| Body Inside Diameter | 0.537 INCHES MINIMUM AND 0.543 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.017 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL |
| End Hole Diameter | 0.250 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 |
| Part Number | Manufacturer |
|---|---|
| 2775259-101 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 2775259-101 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-084-7378 is a Retainer,helical Compression Spr, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-084-7378 has 1 manufacturer part number on file: 2775259-101 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for 2775259-101: Flange Diameter: 1.090 INCHES NOMINAL IN; Overall Height: 0.162 INCHES MINIMUM AND 0.168 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE; Flange Thickness: 0.090 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.