PartsTable TECHNICAL DATA SHEET
NSN 4730-01-270-4100Government record, cited

Union, Buttweld, Reducer4730-01-270-4100

NSN 4730-01-270-4100 · NIIN 012704100 · Part number 79K80266-17-1
John F Kennedy Space Center Dba Nasa Div Kennedy Space Center · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 22264
Government record, cited
NSN 4730-01-270-4100 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-270-4100. Manufacturer of record part number: 79K80266-17-1.
Also searched as  4730-01-270-4100 · 4730012704100 · NIIN 012704100 · 01-270-4100 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 22264 · 79K80266-17-1
Nearby stock numbers  ·
Features
  • Union,buttweld,reducer — FSC 4730
  • General Characteristics Item Description: 79K80266-17-1; STAINLESS STEEL,TYPE 316 PER SPEC. QQ-S-763,COND A; OUTSIDE TUBE DIA. LARGE END 2 IN.; WALL THICKNESS LARGE END .188 IN.; OUTSIDE TUBE DIA. SMALL END 1/4 IN.; WALL THICKNESS SMALL END .035 IN.; OPERATING PRESSURE 3800; PROOF PRESSURE 1 1/2 TIMES OPERATING PRESSURE; BURST PRESSURE 4 TIMES OPERATING PRESSURE; FOR ALL FLUIDS COMPATIBLE WITH 316 SST IN
  • Criticality Code Justification: TEXT
  • 1 manufacturer part number on file
  • Manufacturer of record: John F Kennedy Space Center Dba Nasa Div Kennedy Space Center
Identification
  • NSN: 4730-01-270-4100
  • NIIN: 012704100
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 79K80266-17-1
  • Manufacturer: John F Kennedy Space Center Dba Nasa Div Kennedy Space Center
General Description

The Union,buttweld,reducer, cataloged under National Stock Number 4730-01-270-4100, 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 John F Kennedy Space Center Dba Nasa Div Kennedy Space Center. 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-270-4100
Primary Part Number79K80266-17-1
Item NameUnion,buttweld,reducer
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerJohn F Kennedy Space Center Dba Nasa Div Kennedy Space Center
StatusACTIVE
General Characteristics Item Description79K80266-17-1; STAINLESS STEEL,TYPE 316 PER SPEC. QQ-S-763,COND A; OUTSIDE TUBE DIA. LARGE END 2 IN.; WALL THICKNESS LARGE END .188 IN.; OUTSIDE TUBE DIA. SMALL END 1/4 IN.; WALL THICKNESS SMALL END .035 IN.; OPERATING PRESSURE 3800; PROOF PRESSURE 1 1/2 TIMES OPERATING PRESSURE; BURST PRESSURE 4 TIMES OPERATING PRESSURE; FOR ALL FLUIDS COMPATIBLE WITH 316 SST IN
Criticality Code JustificationTEXT
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeY
Cross-Reference Index
Part NumberManufacturer
79K80266-17-1 PRIMARY John F Kennedy Space Center Dba Nasa Div Kennedy Space Center (USA)
No interchangeability data on file.
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 4730-01-270-4100?

NSN 4730-01-270-4100 is a Union,buttweld,reducer, manufactured by John F Kennedy Space Center Dba Nasa Div Kennedy Space Center, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-270-4100?

NSN 4730-01-270-4100 has 1 manufacturer part number on file: 79K80266-17-1 (John F Kennedy Space Center Dba Nasa Div Kennedy Space Center).

What are the specifications of 79K80266-17-1?

Key specifications for 79K80266-17-1: General Characteristics Item Description: 79K80266-17-1; STAINLESS STEEL,TYPE 316 PER SPEC. QQ-S-763,COND A; OUTSIDE TUBE DIA. LARGE END 2 IN.; WALL THICKNESS LARGE END .188 IN.; OUTSIDE TUBE DIA. SMALL END 1/4 IN.; WALL THICKNESS SMALL END .035 IN.; OPERATING PRESSURE 3800; PROOF PRESSURE 1 1/2 TIMES OPERATING PRESSURE; BURST PRESSURE 4 TIMES OPERATING PRESSURE; FOR ALL FLUIDS COMPATIBLE WITH 316 SST IN; Criticality Code Justification: TEXT. 2 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-270-4100 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.
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