NSN 4730-01-377-6781 · NIIN 013776781 · Part number 5L1883
Caterpillar Inc Div Caterpillar Defense · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 11083
Government record, cited
NSN 4730-01-377-6781 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-377-6781. Manufacturer of record part number: 5L1883.
Also searched as4730-01-377-6781 ·
4730013776781 ·
NIIN 013776781 ·
01-377-6781 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 11083 · 5L1883
4730-01-377-6781 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Flange,pipe — FSC 4730
Face Seating Surface Condition: MACHINED
Flange Section Style: PLAIN FACE
Style Designator: OVAL, ONE BOLT HOLE CIRCLE
Bolt Hole Diameter: 0.406 INCHES NOMINAL IN
Flange Length: 2.000 INCHES NOMINAL IN
Bolt Hole Quantity: 2
Bolt Circle Diameter: 0.344 INCHES NOMINAL IN
Identification
NSN: 4730-01-377-6781
NIIN: 013776781
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 5L1883
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Flange,pipe, cataloged under National Stock Number 4730-01-377-6781, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 9 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.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-377-6781?
NSN 4730-01-377-6781 is a Flange,pipe, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-377-6781?
NSN 4730-01-377-6781 has 1 manufacturer part number on file: 5L1883 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 5L1883?
Key specifications for 5L1883: Face Seating Surface Condition: MACHINED; Flange Section Style: PLAIN FACE; Style Designator: OVAL, ONE BOLT HOLE CIRCLE; Bolt Hole Diameter: 0.406 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-377-6781 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.