The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-238-0297, 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 Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (CAGE 830Q4) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-238-0297 |
| Primary Part Number | 2099N |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| Status | ACTIVE |
| 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 |
|---|---|
| 2099N PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| HL-19392 PIECE 77 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| HL-19392 PIECE 77 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 2099N | 5/9 Secondary reference U.S. Government activity |
| 2099N | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| HL-19392 PIECE 77 | 5/9 Secondary reference U.S. Government activity |
| HL-19392 | D/9 Drawing number reference only U.S. Government activity |
NSN 5340-01-238-0297 is a Seat,helical Compression Spring, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-238-0297 has 2 manufacturer part numbers on file: 2099N (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), HL-19392 PIECE 77 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions).
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.