The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-125-8969, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Solo Enterprise Corp. Dba Solo Enterprise Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-125-8969 |
| Primary Part Number | 1534AS178 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Solo Enterprise Corp. Dba Solo Enterprise Corp |
| Status | ACTIVE |
| FSC Application Data | RACK,BOMB,EJECTOR AIRCRAFT,BRU-32/A |
| First Step Diameter | 0.7500 INCHES NOMINAL IN |
| End Diameter | 0.4690 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN |
| Second End Diameter | 0.4690 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN |
| Distance From End to First Step | 0.4700 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| First Step Length | 0.0450 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Bore Diameter | 0.3750 INCHES MINIMUM AND 0.3790 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 1534AS178 | Solo Enterprise Corp. Dba Solo Enterprise Corp (USA) |
| D001829-1 | The Boeing Company Div Services (USA) |
| 1534AS178 | Garrity Tool Company, Llc (USA) |
| D001829-1 | The Boeing Company Div Defense (USA) |
| 1534AS178 | Marvin Engineering Co, Inc (USA) |
| 1534AS178 | Vertex Modernization and Sustainment Llc (USA) |
| 1534AS178 | Gtc Machining Llc (USA) |
| 1534AS178 | Klune Industries, Inc. Div Pcc Aerostructures, Spanish Fork Dba Klune Industries (USA) |
| Reference | Meaning |
|---|---|
| 10112488 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| D001829-1 | C/1 Advisory reference — outside the item-of-supply concept Alart Tool & Die Corp |
| 1534AS178 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| D001829-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-125-8969 is a Seat,helical Compression Spring, manufactured by Solo Enterprise Corp. Dba Solo Enterprise Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-125-8969 has 8 manufacturer part numbers on file: 1534AS178 (Solo Enterprise Corp. Dba Solo Enterprise Corp), D001829-1 (The Boeing Company Div Services), 1534AS178 (Garrity Tool Company, Llc), D001829-1 (The Boeing Company Div Defense), 1534AS178 (Marvin Engineering Co, Inc) and 3 more.
Key specifications for 1534AS178: Overall Height: 0.5600 INCHES NOMINAL IN; FSC Application Data: RACK,BOMB,EJECTOR AIRCRAFT,BRU-32/A; First Step Diameter: 0.7500 INCHES NOMINAL IN; End Diameter: 0.4690 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM 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.