The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-00-531-0749, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-531-0749 |
| Primary Part Number | 5310749 |
| Item Name | Boot,dust and Moisture Seal |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| FSC Application Data | MOUNT MACHINE GUN,TRAILER MOUNTED |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 3.937 INCHES NOMINAL IN |
| Opening Inside Diameter | 0.797 INCHES NOMINAL IN |
| Body Outside Diameter | 3.390 INCHES NOMINAL IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Height | 3.875 INCHES NOMINAL IN |
| Style Designator | THRU-HOLE |
| Mounting Hole Diameter | 0.234 INCHES NOMINAL IN |
| Base Overall Length | 4.328 INCHES NOMINAL IN |
| Material Thickness | 0.078 INCHES NOMINAL IN |
| Mounting Device Quantity | 4 |
| Base Width | 1.890 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.500 INCHES NOMINAL IN |
| Material | RUBBER SILICONE BODY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5310749 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| A31009 | 5/9 Secondary reference Numax Electronics Inc |
| 5310749 | 5/9 Secondary reference Springfield Armory |
NSN 5340-00-531-0749 is a Boot,dust and Moisture Seal, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-531-0749 has 1 manufacturer part number on file: 5310749 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 5310749: Overall Height: 4.016 INCHES NOMINAL IN; FSC Application Data: MOUNT MACHINE GUN,TRAILER MOUNTED; Center to Center Distance Between Mounting Facilities Parallel to Length: 3.937 INCHES NOMINAL IN; Opening Inside Diameter: 0.797 INCHES NOMINAL IN. 14 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.
NSN 5340-00-531-0749 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.