NSN 4240-01-663-6647 · NIIN 016636647 · Part number MD0530
Crew Systems Corporation · FSC 4240 — Safety and Rescue Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 1NYY1
Government record, cited
NSN 4240-01-663-6647 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-663-6647. Manufacturer of record part number: MD0530.
Also searched as4240-01-663-6647 ·
4240016636647 ·
NIIN 016636647 ·
01-663-6647 ·
FSC 4240 Safety and Rescue Equipment · CAGE 1NYY1 · MD0530
Nearby stock numbers← 4240-01-663-6642 Elbow, Belt Dock
·
4240-01-663-6651 Compensation →
Features
Compensation Tube — FSC 4240
2 manufacturer part numbers on file
Manufacturer of record: Crew Systems Corporation
Identification
NSN: 4240-01-663-6647
NIIN: 016636647
FSC: 4240 — Safety and Rescue Equipment
FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
Primary part number: MD0530
Manufacturer: Crew Systems Corporation
General Description
The Compensation Tube, cataloged under National Stock Number 4240-01-663-6647, 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 Crew Systems Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Compensation Tube
FSC / FSG
4240 — Safety and Rescue Equipment (FSG 42)
Manufacturers
Crew Systems Corporation (CAGE 1NYY1); Avon Protection Systems Incorporated Dba Avon Protection Systems Inc (CAGE 1LEW5)
Technical Specifications
Parameter
Value
NSN
4240-01-663-6647
Primary Part Number
MD0530
Item Name
Compensation Tube
FSC / FSG
4240 / 42 — Safety and Rescue Equipment
Manufacturer
Crew Systems Corporation
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Avon Protection Systems Incorporated Dba Avon Protection Systems Inc (USA)
No interchangeability data on file.
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 4240-01-663-6647?
NSN 4240-01-663-6647 is a Compensation Tube, manufactured by Crew Systems Corporation, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
What part numbers are listed for NSN 4240-01-663-6647?
NSN 4240-01-663-6647 has 2 manufacturer part numbers on file: MD0530 (Crew Systems Corporation), MD0530 (Avon Protection Systems Incorporated Dba Avon Protection Systems Inc).
Is NSN 4240-01-663-6647 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.