NSN 4730-01-388-0637 · NIIN 013880637 · Part number 801-6640828PC35
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-388-0637 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-388-0637. Manufacturer of record part number: 801-6640828PC35.
Also searched as4730-01-388-0637 ·
4730013880637 ·
NIIN 013880637 ·
01-388-0637 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 801-6640828PC35 · 801-6640828
4730-01-388-0637 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Flange,pipe — FSC 4730
Flange Diameter: 5.000 INCHES NOMINAL IN
Face Seating Surface Condition: MACHINED
Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT ANY ACCEPTABLE DEGF
Flange Section Style: PLAIN FACE, LONG NECK
Style Designator: ROUND, ONE BOLT HOLE CIRCLE
Bolt Hole Diameter: 0.562 INCHES NOMINAL IN
Neck Height: 1.711 INCHES NOMINAL IN
Identification
NSN: 4730-01-388-0637
NIIN: 013880637
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 801-6640828PC35
Manufacturer: Naval Sea Systems Command
General Description
The Flange,pipe, cataloged under National Stock Number 4730-01-388-0637, 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 Naval Sea Systems Command. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-388-0637 is a Flange,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-388-0637?
NSN 4730-01-388-0637 has 1 manufacturer part number on file: 801-6640828PC35 (Naval Sea Systems Command).
What NSN replaces 4730-01-388-0637?
11 possible matches (shared part number, not a government interchangeability claim): 4730-01-388-0666, 4730-01-388-0684, 4730-01-393-2826. Verify interchangeability with system specifications before substitution.
What are the specifications of 801-6640828PC35?
Key specifications for 801-6640828PC35: Flange Diameter: 5.000 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT ANY ACCEPTABLE DEGF; Flange Section Style: PLAIN FACE, LONG NECK. 13 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-388-0637 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.