NSN 4720-01-504-9931 · NIIN 015049931 · Part number 1698AS256
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 30003
Government record, cited
NSN 4720-01-504-9931 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-504-9931. Manufacturer of record part number: 1698AS256.
Also searched as4720-01-504-9931 ·
4720015049931 ·
NIIN 015049931 ·
01-504-9931 ·
FSC 4720 Hose and Flexible Tubing · CAGE 30003 · 1698AS256
Measuring Method and Length: 38.750 INCHES NOMINAL OVERALL IN
Connection Type: PLAIN BOTH ENDS
Cross-Sectional Shape Style: ROUND
Inside Diameter: 5.000 INCHES NOMINAL FIRST END IN
1 manufacturer part number on file
Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
NSN: 4720-01-504-9931
NIIN: 015049931
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 1698AS256
Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description
The Hose,air Duct, cataloged under National Stock Number 4720-01-504-9931, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 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
4720-01-504-9931
Primary Part Number
1698AS256
Item Name
Hose,air Duct
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080
HOSE ASSEMBLY,NONMETALLIC
4720-00-000-0081
4720-00-000-0081 · Item name not on file
4720-00-000-0084
HOSE,PREFORMED
4720-00-000-0724
4720-00-000-0724 · Item name not on file
4720-00-001-0014
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0015
4720-00-001-0015 · Item name not on file
4720-00-001-0023
HOSE ASSEMBLY,NONMETALLIC
4720-00-001-0025
4720-00-001-0025 · Item name not on file
Frequently Asked Questions
What is NSN 4720-01-504-9931?
NSN 4720-01-504-9931 is a Hose,air Duct, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-01-504-9931?
NSN 4720-01-504-9931 has 1 manufacturer part number on file: 1698AS256 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 1698AS256?
Key specifications for 1698AS256: Measuring Method and Length: 38.750 INCHES NOMINAL OVERALL IN; Connection Type: PLAIN BOTH ENDS; Cross-Sectional Shape Style: ROUND; Inside Diameter: 5.000 INCHES NOMINAL FIRST END IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-504-9931 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 4720-01-504-9931?
NSN 4720-01-504-9931 has DEMIL Code B. 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.