The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-177-3077, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-177-3077 |
| Primary Part Number | S9405-39 |
| Item Name | Seat,helical Compression Spring |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| First Step Diameter | 2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN |
| Design Type | SOLID |
| Material Document and Classification | QQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720, COMP 302 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 304 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 304L FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-763, CLASS 310 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-763, CLASS 316, COND A FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-763, CLASS 321 FED SPEC 6TH MATERIAL RESPONSE |
| Counterbore Length | 0.1000 INCHES MINIMUM AND 0.1200 INCHES MAXIMUM IN |
| Counterbore Diameter | 2.0700 INCHES MINIMUM AND 2.0900 INCHES MAXIMUM IN |
| Bore Diameter | 1.8200 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 321 |
| 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 |
|---|---|
| S9405-39 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 10112882 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| S9405-39 | 5/9 Secondary reference Boeing Distribution Services X, Inc. |
| S9405-39 | 5/9 Secondary reference U.S. Government activity |
NSN 5340-01-177-3077 is a Seat,helical Compression Spring, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-177-3077 has 1 manufacturer part number on file: S9405-39 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for S9405-39: Overall Height: 0.2200 INCHES MINIMUM AND 0.2400 INCHES MAXIMUM IN; First Step Diameter: 2.1300 INCHES MINIMUM AND 2.1500 INCHES MAXIMUM IN; Design Type: SOLID; Material Document and Classification: QQ-S-763, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE OR MIL-S-7720, COMP 302 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 304 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 304L FED SPEC 3RD MATERIAL RESPONSE OR QQ-S-763, CLASS 310 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-763, CLASS 316, COND A FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-763, CLASS 321 FED SPEC 6TH MATERIAL RESPONSE. 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.