The Receiver,automatic Gun, cataloged under National Stock Number 1005-01-686-8938, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1005-01-686-8938
Item Name
Receiver,automatic Gun
FSC / FSG
1005 / 10 — Guns, Through 30mm
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
KIT-MCX-WUPPER-AUTO-BLK
C/1Advisory reference — outside the item-of-supply concept
Sig Sauer Inc.
2401599-01
3/9Design control — primary reference
Sig Sauer Inc.
No interchangeability data on file.
Other items in FSC 1005 — Guns, Through 30mm
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1005-00-000-0061
MACHINE GUN,7.62 MILLIMETER
1005-00-001-2676
FILTER,GUN DRIVE
1005-00-001-5589
1005-00-001-5589 · Item name not on file
1005-00-002-0996
1005-00-002-0996 · Item name not on file
1005-00-003-1073
STOP,CARTRIDGE
1005-00-003-2251
1005-00-003-2251 · Item name not on file
1005-00-003-2267
1005-00-003-2267 · Item name not on file
1005-00-003-2268
1005-00-003-2268 · Item name not on file
Frequently Asked Questions
What is NSN 1005-01-686-8938?
NSN 1005-01-686-8938 is a Receiver,automatic Gun, classified under FSC 1005, Guns, Through 30mm. Status: active.
What are the specifications of 1005-01-686-8938?
Key specifications for 1005-01-686-8938: Part Name Assigned by Controlling Agency: RECEIVER, UPPER, MCX, GEN 2; End Item Identification: P/N 2400509-01 MULTI CALIBRE WEAPON SYSTEM MCX. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1005-01-686-8938 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 1005-01-686-8938?
NSN 1005-01-686-8938 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.