NSN 4720-01-185-3738 · NIIN 011853738 · Part number 3G1645
Caterpillar Inc Div Caterpillar Defense · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 11083
Government record, cited
NSN 4720-01-185-3738 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-185-3738. Manufacturer of record part number: 3G1645.
Also searched as4720-01-185-3738 ·
4720011853738 ·
NIIN 011853738 ·
01-185-3738 ·
FSC 4720 Hose and Flexible Tubing · CAGE 11083 · 3G1645 · 29508 · 12MCS-12FJS-12SF90-27.50 · 12MCS-12FJS-12SF90-27.50
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 4720-01-185-3738
NIIN: 011853738
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 3G1645
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-185-3738, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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.
Catalog Facts
Item Name
Hose Assembly,nonmetallic
FSC / FSG
4720 — Hose and Flexible Tubing (FSG 47)
Manufacturers
Caterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
Parameter
Value
NSN
4720-01-185-3738
Primary Part Number
3G1645
Item Name
Hose Assembly,nonmetallic
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
Caterpillar Inc Div Caterpillar Defense
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.
4820-01-216-1539POSSIBLE MATCH
SLEEVE,CYLINDER,VALVE
Possible match (shared part number)
4820-01-298-290429508POSSIBLE MATCH
SLEEVE,DIRECTIONAL CONTROL LINEA
Possible match (shared part number)Moog Military Aircraft Llc
5306-01-388-114229508POSSIBLE MATCH
BOLT,EYE
Possible match (shared part number)Jergens Inc Div Tooling Components Division
6520-01-480-797729508POSSIBLE MATCH
SYRINGE,DENTAL FILLING MATERIAL
Possible match (shared part number)Kerr Corporation
6625-01-623-696729508POSSIBLE MATCH
PLUG-IN UNIT,ELECTRICAL-ELECTRON
Possible match (shared part number)Kontron America, Incorporated Dba Kontron Mobile Computing
NSN 4720-01-185-3738 is a Hose Assembly,nonmetallic, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
What part numbers are listed for NSN 4720-01-185-3738?
NSN 4720-01-185-3738 has 1 manufacturer part number on file: 3G1645 (Caterpillar Inc Div Caterpillar Defense).
What NSN replaces 4720-01-185-3738?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-216-1539, 4820-01-298-2904, 5306-01-388-1142. Verify interchangeability with system specifications before substitution.
Is NSN 4720-01-185-3738 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.