The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-049-2008, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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 | 5340-01-049-2008 |
| Primary Part Number | 220402 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Body Outside Diameter | 5.248 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | QQ-N-281 CLASS A CD OR HF FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Body Inside Diameter | 3.758 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN |
| Outside Chamfer Angle in Deg | 45.0 |
| Casehardening Indicator | NOT CASEHARDENED |
| Lip Thickness | 0.180 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.060 INCHES NOMINAL IN |
| Material | NICKEL ALLOY 400 |
| End Hole Diameter | 4.000 INCHES MINIMUM AND 4.005 INCHES MAXIMUM 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 |
NSN 5340-01-049-2008 is a Retainer,helical Compression Spr, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-049-2008 has 2 manufacturer part numbers on file: 220402 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 220402 (Toolex, Inc Dba Toolex Inc).
Key specifications for 220402: Overall Height: 0.810 INCHES NOMINAL IN; Body Outside Diameter: 5.248 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN; Style Designator: IRREGULAR; Material Document and Classification: QQ-N-281 CLASS A CD OR HF FED SPEC SINGLE MATERIAL RESPONSE. 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.