The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-01-176-9764, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-176-9764 |
| Primary Part Number | 165749-11 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Sealing Method | COMPRESSION |
| Opening Inside Diameter | 0.125 INCHES NOMINAL IN |
| Body Outside Diameter | 2.125 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Height | 0.812 INCHES NOMINAL IN |
| Style Designator | THRU-HOLE |
| Mounting Device Quantity | 4 |
| Base Outside Diameter | 2.750 INCHES NOMINAL IN |
| Material | RUBBER BODY |
| 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 |
|---|---|
| 165749-11 | Raytheon Company (USA) |
| 165749-11 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| 583755 | Measurement Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 165749-11 | 5/9 Secondary reference Raytheon Company Div Corp |
| 165749-11 | 5/9 Secondary reference Raytheon Marine Co Hq |
NSN 5340-01-176-9764 is a Boot,dust and Moisture Seal, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-176-9764 has 3 manufacturer part numbers on file: 165749-11 (Raytheon Company), 165749-11 (Raytheon Company Dba Raytheon Co), 583755 (Measurement Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5963-01-586-7176. Verify interchangeability with system specifications before substitution.
Key specifications for 165749-11: Overall Height: 2.031 INCHES NOMINAL IN; Sealing Method: COMPRESSION; Opening Inside Diameter: 0.125 INCHES NOMINAL IN; Body Outside Diameter: 2.125 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.