The Hose,air Duct, cataloged under National Stock Number 4720-01-649-9186, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4720-01-649-9186
Item Name
Hose,air Duct
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
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
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-649-9220POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
4720-01-649-9223POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
4720-01-649-9225POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
4720-01-649-9240POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
4720-01-649-9251POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
4720-01-649-9255POSSIBLE MATCH
HOSE,AIR DUCT
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
M32107/12-1N5-BL
5/9Secondary reference
U.S. Government activity
MIL-PRF-32107/12
4/1Identification reference
U.S. Government activity
M32107/12-1N5-BL
2/2Government specification standardization
U.S. Government activity
Related Parts
4720-01-649-9220POSSIBLE MATCH
HOSE,AIR DUCT
4720-01-649-9223POSSIBLE MATCH
HOSE,AIR DUCT
4720-01-649-9225POSSIBLE MATCH
HOSE,AIR DUCT
4720-01-649-9240POSSIBLE MATCH
HOSE,AIR DUCT
4720-01-649-9251POSSIBLE MATCH
HOSE,AIR DUCT
4720-01-649-9255POSSIBLE MATCH
HOSE,AIR DUCT
Frequently Asked Questions
What is NSN 4720-01-649-9186?
NSN 4720-01-649-9186 is a Hose,air Duct, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What NSN replaces 4720-01-649-9186?
6 possible matches (shared part number, not a government interchangeability claim): 4720-01-649-9220, 4720-01-649-9223, 4720-01-649-9225. Verify interchangeability with system specifications before substitution.
What are the specifications of 4720-01-649-9186?
Key specifications for 4720-01-649-9186: Special Features: MINIMUM PERMEABILITY CFM/SQUARE FOOT IS 5.0; INSIDE DIAMETER OF CAP IS 5.0 INCHES IN; Part Name Assigned by Controlling Agency: HOSE, AIR DUCT CAP, ROUND. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-649-9186 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.