NSN 4730-01-129-8578 · NIIN 011298578 · Part number 820-1385990
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 4730-01-129-8578 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-129-8578. Manufacturer of record part number: 820-1385990.
Also searched as4730-01-129-8578 ·
4730011298578 ·
NIIN 011298578 ·
01-129-8578 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 820-1385990 · 215-4639686F84 · 820-1385990/1IN/NICU/THDPC · MIL-F-23509 · 820-1385990 BW 1IN NOT BORED · MIL-F-23509CLIV
Nearby stock numbers← 4730-01-129-8577 Tailpiece, Union
·
4730-01-129-8692 Tee Fitting Assy →
4730-01-129-8578 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Thread Piece,union — FSC 4730
Criticality Code Justification: ZZZY
Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4730-01-129-8578
NIIN: 011298578
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 820-1385990
Manufacturer: Naval Sea Systems Command
General Description
The Thread Piece,union, cataloged under National Stock Number 4730-01-129-8578, 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 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-129-8578 is a Thread Piece,union, 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 4730-01-129-8578?
NSN 4730-01-129-8578 has 1 manufacturer part number on file: 820-1385990 (Naval Sea Systems Command).
What NSN replaces 4730-01-129-8578?
8 possible matches (shared part number, not a government interchangeability claim): 4730-01-129-9351, 4730-01-241-6737, 4730-01-287-3318. Verify interchangeability with system specifications before substitution.
What are the specifications of 820-1385990?
Key specifications for 820-1385990: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-129-8578 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 4730-01-129-8578?
NSN 4730-01-129-8578 has DEMIL Code F. 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.