NSN 4240-01-464-2636 · NIIN 014642636 · Part number 643040
Ocenco Inc · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 03WY2
Government record, cited
NSN 4240-01-464-2636 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-464-2636. Manufacturer of record part number: 643040.
Also searched as4240-01-464-2636 ·
4240014642636 ·
NIIN 014642636 ·
01-464-2636 ·
FSC 4240 Safety and Rescue Equipment · CAGE 03WY2 · 643040
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: 643040
Manufacturer: Ocenco Inc
General Description
The Mouthpiece Kit, cataloged under National Stock Number 4240-01-464-2636, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Ocenco Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4240-01-464-2636
Primary Part Number
643040
Item Name
Mouthpiece Kit
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Ocenco Inc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 4240 — Safety and Rescue Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4240-00-001-1515
4240-00-001-1515 · Item name not on file
4240-00-001-2684
4240-00-001-2684 · Item name not on file
4240-00-006-0022
HOSE,EVACUATION
4240-00-007-4576
4240-00-007-4576 · Item name not on file
4240-00-007-8182
4240-00-007-8182 · Item name not on file
4240-00-007-8183
4240-00-007-8183 · Item name not on file
4240-00-007-8184
4240-00-007-8184 · Item name not on file
4240-00-007-8185
4240-00-007-8185 · Item name not on file
Frequently Asked Questions
What is NSN 4240-01-464-2636?
NSN 4240-01-464-2636 is a Mouthpiece Kit, manufactured by Ocenco Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-464-2636?
NSN 4240-01-464-2636 has 1 manufacturer part number on file: 643040 (Ocenco Inc).
What are the specifications of 643040?
Key specifications for 643040: Special Features: SUBJECT ITEM IS A SOLE SOURCE WITH OCENCO INC (03WY2), PRODUCT NUMBER 643040 (M20.2T MOUTHPIECE KIT), THIS IS AN ACCESSORY PART FOR THE EMERGENCY ESCAPE BREATHING (EEBD), NO FIRST ARTICLES WILL BE REQUIRED SINCE THE END ITEM QUALITY WILL BE ASSURED BY NIOSH CERTIFICATION, PGC ASSIGNED TO THE NSN IS 25787. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4240-01-464-2636 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.