The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-677-5663, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Boeing Distribution Services X, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-677-5663 |
| Primary Part Number | 95506-1 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| First Step Diameter | 1.1250 INCHES NOMINAL IN |
| End Diameter | 0.7150 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1050 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Bore Diameter | 0.2322 INCHES NOMINAL 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 | X |
| Unit of Issue | EA |
NSN 5340-00-677-5663 is a Seat,helical Compression Spring, manufactured by Boeing Distribution Services X, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-677-5663 has 2 manufacturer part numbers on file: 95506-1 (Boeing Distribution Services X, Inc.), 95506-1 (Honeywell International Inc. Div Aerospace - Torrance).
1 possible match (shared part number, not a government interchangeability claim): 2010-01-033-7278. Verify interchangeability with system specifications before substitution.
Key specifications for 95506-1: Overall Height: 0.1600 INCHES NOMINAL IN; First Step Diameter: 1.1250 INCHES NOMINAL IN; End Diameter: 0.7150 INCHES NOMINAL IN; Distance From End to First Step: 0.1050 INCHES NOMINAL IN. 7 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.