PartsTable TECHNICAL DATA SHEET
NSN 4730-00-374-6955Government record, cited

Adapter, Straight, Tube to Hose4730-00-374-6955

NSN 4730-00-374-6955 · NIIN 003746955 · Part number 4721-20
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 00624
Government record, cited
NSN 4730-00-374-6955 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-374-6955. Manufacturer of record part number: 4721-20.
Also searched as  4730-00-374-6955 · 4730003746955 · NIIN 003746955 · 00-374-6955 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 00624 · 4721-20 · 9125146 · 9125146
Nearby stock numbers  ·
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Furnished Items and Quantity: 1 HOSE COUPLING NUT
  • Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST ENDSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
  • Connection Style: GRIPPING NIPPLE (NOSE) SECOND ENDGRIPPING NIPPLE (NOSE) SECOND END
  • Nominal Inside Diameter Hose Accommodated: 1.250 INCHES SECOND END IN
  • Nominal Outside Diameter Hose Accommodated: 2.000 INCHES SECOND END IN
  • Nominal Overall Length: 5.100 INCHES IN
  • Connection Type: THREADED INTERNAL TUBE FIRST ENDTHREADED INTERNAL TUBE FIRST END
Identification
  • NSN: 4730-00-374-6955
  • NIIN: 003746955
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 4721-20
  • Manufacturer: Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-374-6955, 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 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-374-6955
Primary Part Number4721-20
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerEaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
StatusACTIVE
Furnished Items and Quantity1 HOSE COUPLING NUT
Connection StyleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST ENDSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
Connection StyleGRIPPING NIPPLE (NOSE) SECOND ENDGRIPPING NIPPLE (NOSE) SECOND END
Nominal Inside Diameter Hose Accommodated1.250 INCHES SECOND END IN
Nominal Outside Diameter Hose Accommodated2.000 INCHES SECOND END IN
Nominal Overall Length5.100 INCHES IN
Connection TypeTHREADED INTERNAL TUBE FIRST ENDTHREADED INTERNAL TUBE FIRST END
Connection TypeTHREADED EXTERNAL HOSE GRIPPING SECOND ENDTHREADED EXTERNAL HOSE GRIPPING SECOND END
Nominal Outside Diameter Tube Accommodated1.250 INCHES FIRST END IN
Operating Pressure2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size1.625 INCHES FIRST END1.625 INCHES FIRST END IN
Seat Angle37.0 DEGREES FIRST END
Maximum Operating Temp200.0 FAHRENHEIT SINGLE RESPONSE200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Thread Class3B FIRST END3B FIRST END
Thread Quantity Per Inch12 FIRST END12 FIRST END
MaterialSTEEL OVERALL
Thread Series DesignatorUN FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5365-01-418-15464721-20 POSSIBLE MATCH
SPACER,SLEEVE
Possible match (shared part number)Tyee Aircraft Inc Div Tyee Aircraft
Cross-Reference Index
Part NumberManufacturer
4721-20 PRIMARY Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Reference documents
ReferenceMeaning
9125146 5/9 Secondary reference
Euclid Inc
9125146 5/9 Secondary reference
U.S. Government activity
Related Parts
5365-01-418-1546POSSIBLE MATCH
SPACER,SLEEVE
4721-20

Frequently Asked Questions

What is NSN 4730-00-374-6955?

NSN 4730-00-374-6955 is a Adapter,straight,tube to Hose, manufactured by Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-00-374-6955?

NSN 4730-00-374-6955 has 1 manufacturer part number on file: 4721-20 (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 4730-00-374-6955?

1 possible match (shared part number, not a government interchangeability claim): 5365-01-418-1546. Verify interchangeability with system specifications before substitution.

What are the specifications of 4721-20?

Key specifications for 4721-20: Furnished Items and Quantity: 1 HOSE COUPLING NUT; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST ENDSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Connection Style: GRIPPING NIPPLE (NOSE) SECOND ENDGRIPPING NIPPLE (NOSE) SECOND END; Nominal Inside Diameter Hose Accommodated: 1.250 INCHES SECOND END IN. 17 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-374-6955 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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