PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74178Hose Assembly,nonmetallic

O T S I · NSN 4720-01-168-1692 · FSC 4720 · No Item Name Available
Verified by PartsTable
NSN 4720-01-168-1692 — this item is cataloged by the U.S. Government under National Stock Number 4720-01-168-1692. Primary manufacturer part number: 74178.
Features
  • Hose Assembly,nonmetallic — FSC 4720
  • Connection Type: THREADED EXTERNAL PIPE FIRST END
  • Thread Direction: RIGHT-HAND FIRST END
  • Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Measuring Method and Length: 180.000 INCHES NOMINAL OVERALL IN
  • Connection Style: INVERTED FLARE FIRST END
  • Inside Diameter: 0.250 INCHES NOMINAL IN
  • Operating Pressure: 315.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-168-1692, is classified within Federal Supply Class 4720 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is O T S I. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4720-01-168-1692
Primary Part Number74178
Item NameHose Assembly,nonmetallic
FSC / FSG4720 / 47 — No Item Name Available
ManufacturerO T S I
StatusACTIVE
Connection TypeTHREADED EXTERNAL PIPE FIRST END
Thread DirectionRIGHT-HAND FIRST END
Temp Rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Measuring Method and Length180.000 INCHES NOMINAL OVERALL IN
Connection StyleINVERTED FLARE FIRST END
Inside Diameter0.250 INCHES NOMINAL IN
Operating Pressure315.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
Thread Series DesignatorNPT FIRST END
Exterior ColorBLACK
Nominal Thread Size0.250 INCHES FIRST END IN
Layer Composition and Location1ST LAYER BRAIDED SYNTHETIC CORD AND 2ND LAYER BRAIDED SYNTHETIC CORD AND OUTER LAYER MOLDED RUBBER, NEOPRENE
Minimum Inside Bending Radius3.000 INCHES IN
Hydrostatic Test Pressure630.0 POUNDS PER SQUARE INCH LBS
Inside Surface ConditionSMOOTH
Outside Diameter0.620 INCHES NOMINAL IN
Media for Which DesignedAIR SINGLE RESPONSE
Burst Test Pressure1260.0 POUNDS PER SQUARE INCH LBS
Seat Angle30.0 DEGREES FIRST END
End Connection DesignSTRAIGHT FIRST END
Cross-Sectional Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5815-00-125-823874178 INTERCHANGEABLE
Bracket
Telemechanics Inc
5940-00-156-741774-169 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
Cross-Reference Index
Part NumberManufacturer
B74178 O T S I (USA)
74178 PRIMARY O T S I (USA)
Related Parts
5815-00-125-8238INTERCHANGEABLE
BRACKET
74178
5940-00-156-7417INTERCHANGEABLE
TERMINAL,LUG
74-169

Frequently Asked Questions

What is NSN 4720-01-168-1692?

NSN 4720-01-168-1692 is a Hose Assembly,nonmetallic, manufactured by O T S I, classified under FSC 4720 (No Item Name Available). Status: active.

What are the part numbers for NSN 4720-01-168-1692?

NSN 4720-01-168-1692 has 2 cross-referenced part numbers: B74178 (O T S I), 74178 (O T S I).

What NSN replaces 4720-01-168-1692?

There are 2 known substitutes for 4720-01-168-1692: 5815-00-125-8238, 5940-00-156-7417. Verify interchangeability with system specifications before substitution.

What are the specifications of 74178?

Key specifications for 74178: Connection Type: THREADED EXTERNAL PIPE FIRST END; Thread Direction: RIGHT-HAND FIRST END; Temp Rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF; Measuring Method and Length: 180.000 INCHES NOMINAL OVERALL IN. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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