NSN 4720-01-662-1587 · NIIN 016621587 · Part number 257-2121
Caterpillar Inc Div Caterpillar Defense · FSC 4720 — Hose and Flexible Tubing · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 11083
Government record, cited
NSN 4720-01-662-1587 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-662-1587. Manufacturer of record part number: 257-2121.
Also searched as4720-01-662-1587 ·
4720016621587 ·
NIIN 016621587 ·
01-662-1587 ·
FSC 4720 Hose and Flexible Tubing · CAGE 11083 · 257-2121
Measuring Method and Length: 4600.0 MILLIMETERS NOMINAL OVERALL MM
Operating Pressure: 1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Outer Covering Environmental Protection: OIL RESISTANT AND ABRASION RESISTANT
1 manufacturer part number on file
Manufacturer of record: Caterpillar Inc Div Caterpillar Defense
Identification
NSN: 4720-01-662-1587
NIIN: 016621587
FSC: 4720 — Hose and Flexible Tubing
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 257-2121
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-662-1587, 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. Government technical data includes 3 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
4720-01-662-1587
Primary Part Number
257-2121
Item Name
Hose Assembly,nonmetallic
FSC / FSG
4720 / 47 — Hose and Flexible Tubing
Manufacturer
Caterpillar Inc Div Caterpillar Defense
Status
ACTIVE
Measuring Method and Length
4600.0 MILLIMETERS NOMINAL OVERALL MM
Operating Pressure
1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
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 4720-01-662-1587?
NSN 4720-01-662-1587 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 4720-01-662-1587?
NSN 4720-01-662-1587 has 1 manufacturer part number on file: 257-2121 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 257-2121?
Key specifications for 257-2121: Measuring Method and Length: 4600.0 MILLIMETERS NOMINAL OVERALL MM; Operating Pressure: 1250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS; Special Features: HIGH TEMPERATURE SYNTHETIC RUBBER TUBE AND SINGLE HIGH TENSILE STEEL BRAID REINFORCEMENT; WEATHER RESISTANT; Part Name Assigned by Controlling Agency: MEDIUM PRESSURE HYDRAULIC HOSE ASSEMBLY. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4720-01-662-1587 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.