The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-329-0156, 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 4 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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-329-0156 |
| Primary Part Number | 890955 |
| 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 |
| Body Outside Diameter | 0.542 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN |
| Style Designator | IRREGULAR |
| Material Document and Classification | AISI 302 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 302 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 890955 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5340-01-329-0156 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 5340-01-329-0156 has 1 manufacturer part number on file: 890955 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 890955: Body Outside Diameter: 0.542 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN; Style Designator: IRREGULAR; Material Document and Classification: AISI 302 ASSN STD SINGLE MATERIAL RESPONSE; Special Features: HOLE THRU CENTER 0.265 IN. IN. 4 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.