PartsTable TECHNICAL DATA SHEET

NSN 1005-01-623-9199Government record, cited

Cover, Feed Mechanism, Machine Gun1005-01-623-9199

NSN 1005-01-623-9199 · NIIN 016239199 · Part number 21040434

L&c Protec, Inc. Dba Cocoon · FSC 1005 — Guns, Through 30mm · FSG 10 — Weapons · CAGE 0F052

Government record, cited

NSN 1005-01-623-9199 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-623-9199. Manufacturer of record part number: 21040434.

Also searched as 1005-01-623-9199 · 1005016239199 · NIIN 016239199 · 01-623-9199 · FSC 1005 Guns, Through 30mm · CAGE 0F052 · 21040434 · 10075-004 · 3481CC2318

Nearby stock numbers ← 1005-01-623-8921 Adapter Rail, Weapon Mounted · 1005-01-624-0366 →

Features

Cover,feed Mechanism,machine Gun — FSC 1005
2 manufacturer part numbers on file
Manufacturer of record: L&c Protec, Inc. Dba Cocoon

Identification

NSN: 1005-01-623-9199
NIIN: 016239199
FSC: 1005 — Guns, Through 30mm
FSG: 10 — Weapons
Primary part number: 21040434
Manufacturer: L&c Protec, Inc. Dba Cocoon

General Description

The Cover,feed Mechanism,machine Gun, cataloged under National Stock Number 1005-01-623-9199, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is L&c Protec, Inc. Dba Cocoon. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1005-01-623-9199
Primary Part Number	21040434
Item Name	Cover,feed Mechanism,machine Gun
FSC / FSG	1005 / 10 — Guns, Through 30mm
Manufacturer	L&c Protec, Inc. Dba Cocoon
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
21040434 PRIMARY	L&c Protec, Inc. Dba Cocoon (USA)
21040434	Pioneer Industries, Llc (USA)

Reference documents

Reference	Meaning
10075-004	5/9 Secondary reference Atlantic Diving Supply, Inc. Dba Ads
3481CC2318	D/9 Drawing number reference only L&c Protec, Inc. Dba Cocoon

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.

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1005-00-915-0903

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1005-00-937-5839

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1005-01-251-9180

PIN,TRIGGER HOUSING

Frequently Asked Questions

What is NSN 1005-01-623-9199?

NSN 1005-01-623-9199 is a Cover,feed Mechanism,machine Gun, manufactured by L&c Protec, Inc. Dba Cocoon, classified under FSC 1005, Guns, Through 30mm. Status: active.

What part numbers are listed for NSN 1005-01-623-9199?

NSN 1005-01-623-9199 has 2 manufacturer part numbers on file: 21040434 (L&c Protec, Inc. Dba Cocoon), 21040434 (Pioneer Industries, Llc).

What are the specifications of 21040434?

Key specifications for 21040434: End Item Identification: LINKLESS FEED COVER COBRA FEED SYSTEM. 0 specifications are documented in the U.S. Government catalog.

Is NSN 1005-01-623-9199 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.

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.

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