The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-01-361-7934, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-361-7934 |
| Primary Part Number | UB300 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Body Outside Diameter | 5.938 INCHES NOMINAL IN |
| Mounting Method | CLAMP |
| Mounting Device Quantity | 2 |
| 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 |
|---|---|
| UB300 PRIMARY | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| NC655-9 | 5/9 Secondary reference U.S. Government activity |
| 50211020-1 ITEM 4 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-361-7934 is a Boot,dust and Moisture Seal, manufactured by Altra Industrial Motion Corp., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-361-7934 has 1 manufacturer part number on file: UB300 (Altra Industrial Motion Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5820-01-468-0675. Verify interchangeability with system specifications before substitution.
Key specifications for UB300: Body Outside Diameter: 5.938 INCHES NOMINAL IN; Mounting Method: CLAMP; Overall Length: 5.625 INCHES NOMINAL IN; Mounting Device Quantity: 2. 3 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.