The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-692-3272, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5340-00-692-3272 |
| Primary Part Number | 135285 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Honeywell International, Inc Div Aerospace-Tucson |
| Status | ACTIVE |
| First Step Diameter | 0.4750 INCHES NOMINAL IN |
| End Diameter | 0.3800 INCHES NOMINAL IN |
| Distance From End to First Step | 0.1100 INCHES NOMINAL IN |
| Design Type | SOLID |
| Style Designator | SEAT |
| Second Step Diameter | 0.8750 INCHES NOMINAL IN |
| First Step Length | 0.0500 INCHES NOMINAL IN |
| Bore Diameter | 0.2140 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 |
| Part Number | Manufacturer |
|---|---|
| 135285 | Aero International, Llc Dba Ams Engineered Solutions (USA) |
| 135285 PRIMARY | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| Reference | Meaning |
|---|---|
| 135285 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 135285 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 5340-00-692-3272 is a Seat,helical Compression Spring, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-692-3272 has 2 manufacturer part numbers on file: 135285 (Aero International, Llc Dba Ams Engineered Solutions), 135285 (Honeywell International, Inc Div Aerospace-Tucson).
4 possible matches (shared part number, not a government interchangeability claim): 6850-01-388-5604, 4710-01-478-0340, 4030-01-573-0016. Verify interchangeability with system specifications before substitution.
Key specifications for 135285: Overall Height: 0.1950 INCHES NOMINAL IN; First Step Diameter: 0.4750 INCHES NOMINAL IN; End Diameter: 0.3800 INCHES NOMINAL IN; Distance From End to First Step: 0.1100 INCHES NOMINAL IN. 9 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.