The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-423-3171, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-423-3171 |
| Primary Part Number | 266-0123-00 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Sealing Method | COMPRESSION |
| Thread Series | UNS |
| Opening Inside Diameter | 0.105 INCHES NOMINAL IN |
| Mounting Method | THREAD |
| Base Thread Location | INTERNAL |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Style Designator | THRU-HOLE |
| Material Document and Classification | MIL-R-5847,CLASS 3,GRADE 50 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Thread Class | 2B |
| Material | RUBBER SILICONE BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 266-0123-00 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5340-00-423-3171 is a Boot,dust and Moisture Seal, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-423-3171 has 1 manufacturer part number on file: 266-0123-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 266-0123-00: Overall Height: 0.550 INCHES NOMINAL IN; Width Across Flats: 0.625 INCHES NOMINAL IN; Sealing Method: COMPRESSION; Thread Series: UNS. 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.