The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-633-8532, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-633-8532 |
| Primary Part Number | 740708 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| FSC Application Data | AMPLIFIER ASSEMBLIES,RADAR,AIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE |
| Radius | 0.125 INCHES NOMINAL IN |
| Base Thread Location | EXTERNAL |
| Style Designator | THRU-HOLE |
| Base Overall Length | 2.125 INCHES NOMINAL IN |
| Material Thickness | 0.047 INCHES NOMINAL IN |
| Base Width | 1.750 INCHES NOMINAL IN |
| Distance From Inside Opening to Base Edge | 0.469 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC 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 |
|---|---|
| 740708 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 740708 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5340-00-633-8532 is a Boot,dust and Moisture Seal, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-633-8532 has 1 manufacturer part number on file: 740708 (Northrop Grumman Systems Corporation).
Key specifications for 740708: Overall Height: 1.688 INCHES NOMINAL IN; FSC Application Data: AMPLIFIER ASSEMBLIES,RADAR,AIRBORNE,EXCEPT FIRE CONTROL AND GUIDED MISSILE; Radius: 0.125 INCHES NOMINAL IN; Base Thread Location: EXTERNAL. 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.