PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85121Tube Assembly,metal

Stewart & Stevenson Power Products Llc · NSN 4710-01-319-5051 · FSC 4710 · No Item Name Available
Verified by PartsTable
NSN 4710-01-319-5051 — this item is cataloged by the U.S. Government under National Stock Number 4710-01-319-5051. Primary manufacturer part number: 85121.
Features
  • Tube Assembly,metal — FSC 4710
  • Design Form: STRAIGHT
  • Thread Direction: RIGHT-HAND SINGLE END
  • Mating End Quantity: 2 SINGLE END
  • 2 verified cross-references
  • Primary manufacturer: Stewart & Stevenson Power Products Llc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Tube Assembly,metal, cataloged under National Stock Number 4710-01-319-5051, is classified within Federal Supply Class 4710 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Stewart & Stevenson Power Products Llc. Government technical data includes 3 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4710-01-319-5051
Primary Part Number85121
Item NameTube Assembly,metal
FSC / FSG4710 / 47 — No Item Name Available
ManufacturerStewart & Stevenson Power Products Llc
StatusACTIVE
Design FormSTRAIGHT
Thread DirectionRIGHT-HAND SINGLE END
Mating End Quantity2 SINGLE END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-010-0029 INTERCHANGEABLE
Screw,cap,hexagon Head
4320-00-399-13188512-1 INTERCHANGEABLE
Cover,hydraulic,pump-Motor
Smith Meter Inc Parts Opn
5950-00-993-293185121 INTERCHANGEABLE
Transformer,pulse
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
6530-01-326-180385121 INTERCHANGEABLE
Disposal Container,hypodermic Ne
Covidien Sales Llc Dba Covidien Sales
Cross-Reference Index
Part NumberManufacturer
255734 Stewart & Stevenson Power Products Llc (USA)
85121 PRIMARY Stewart & Stevenson Power Products Llc (USA)
Related Parts
5305-00-010-0029INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
4320-00-399-1318INTERCHANGEABLE
COVER,HYDRAULIC,PUMP-MOTOR
8512-1
5950-00-993-2931INTERCHANGEABLE
TRANSFORMER,PULSE
85121
6530-01-326-1803INTERCHANGEABLE
DISPOSAL CONTAINER,HYPODERMIC NE
85121

Frequently Asked Questions

What is NSN 4710-01-319-5051?

NSN 4710-01-319-5051 is a Tube Assembly,metal, manufactured by Stewart & Stevenson Power Products Llc, classified under FSC 4710 (No Item Name Available). Status: active.

What are the part numbers for NSN 4710-01-319-5051?

NSN 4710-01-319-5051 has 2 cross-referenced part numbers: 255734 (Stewart & Stevenson Power Products Llc), 85121 (Stewart & Stevenson Power Products Llc).

What NSN replaces 4710-01-319-5051?

There are 4 known substitutes for 4710-01-319-5051: 5305-00-010-0029, 4320-00-399-1318, 5950-00-993-2931 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 85121?

Key specifications for 85121: Design Form: STRAIGHT; End Item Identification: GROVE HIGH PRESSURE STARTING SYSTEM MODEL DD963 AND DDG-993; Thread Direction: RIGHT-HAND SINGLE END; Mating End Quantity: 2 SINGLE END. 4 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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