PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST7M298-2Fitting,lubrication

The Boeing Company Div Defense · NSN 4730-00-844-8635 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-844-8635 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-844-8635. Primary manufacturer part number: ST7M298-2.
Features
  • Fitting,lubrication — FSC 4730
  • Height: 1.062 INCHES NOMINAL IN
  • Criticality Code Justification: FEAT
  • Thread Quantity Per Inch: 27
  • Nominal Thread Size: 0.125 INCHES IN
  • Assembly Clearance Radius: 1.000 INCHES NOMINAL IN
  • Angle: 90.0 DEGREES
  • Screw Thread Series Designator: NPTF
Applications
  • Applications requiring Steel Overall construction
General Description

The Fitting,lubrication, cataloged under National Stock Number 4730-00-844-8635, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-844-8635
Primary Part NumberST7M298-2
Item NameFitting,lubrication
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusCANCELLED
Height1.062 INCHES NOMINAL IN
Criticality Code JustificationFEAT
Thread Quantity Per Inch27
Nominal Thread Size0.125 INCHES IN
Assembly Clearance Radius1.000 INCHES NOMINAL IN
Angle90.0 DEGREES
Screw Thread Series DesignatorNPTF
Style DesignatorANGLE
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3120-00-056-97619-350008 INTERCHANGEABLE
Bushing,sleeve
Unison Industries Llc
1680-00-186-8695A358 INTERCHANGEABLE
Control Box
Lockheed Martin Corp
4730-00-188-6320 INTERCHANGEABLE
Fitting,lubrication
4730-00-242-2925 INTERCHANGEABLE
Fitting,lubrication
2640-00-319-58325066G INTERCHANGEABLE
Valve Extension,tire
Schrader-Bridgeport International Inc Dba Schrader Automotive
3040-00-713-2151A3-58 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
4730-00-953-8756 INTERCHANGEABLE
Fitting,lubrication
5420-01-365-7915A358 INTERCHANGEABLE
Bag,bailey Bridge Parts and Tool
C & S Antennas, Inc Dba C & S Antennas Inc
5910-01-373-0996A358 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Horizon Aerospace Llc Dba Magnetics Division
Cross-Reference Index
Part NumberManufacturer
ST7M298-2 Morgenstern and Associates (USA)
A358 Stewart-Warner Alemite Corp (USA)
301SK179 Dana Off Highway Products, Llc (USA)
ST7M298 The Boeing Company Div Defense (USA)
ST7M298-2 Stewart-Warner Alemite Corp (USA)
ST7M298-2 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
3120-00-056-9761INTERCHANGEABLE
BUSHING,SLEEVE
9-350008
1680-00-186-8695INTERCHANGEABLE
CONTROL BOX
A358
4730-00-188-6320INTERCHANGEABLE
FITTING,LUBRICATION
4730-00-242-2925INTERCHANGEABLE
FITTING,LUBRICATION
2640-00-319-5832INTERCHANGEABLE
VALVE EXTENSION,TIRE
5066G
3040-00-713-2151INTERCHANGEABLE
SHAFT,STRAIGHT
A3-58
4730-00-953-8756INTERCHANGEABLE
FITTING,LUBRICATION
5420-01-365-7915INTERCHANGEABLE
BAG,BAILEY BRIDGE PARTS AND TOOL
A358
5910-01-373-0996INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
A358

Frequently Asked Questions

What is NSN 4730-00-844-8635?

NSN 4730-00-844-8635 is a Fitting,lubrication, manufactured by The Boeing Company Div Defense, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-844-8635?

NSN 4730-00-844-8635 has 6 cross-referenced part numbers: ST7M298-2 (Morgenstern and Associates), A358 (Stewart-Warner Alemite Corp), 301SK179 (Dana Off Highway Products, Llc), ST7M298 (The Boeing Company Div Defense), ST7M298-2 (Stewart-Warner Alemite Corp) and 1 more.

What NSN replaces 4730-00-844-8635?

There are 9 known substitutes for 4730-00-844-8635: 3120-00-056-9761, 1680-00-186-8695, 4730-00-188-6320 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ST7M298-2?

Key specifications for ST7M298-2: Special Features: 0.312 IN. THD LG,SURFACE LOCATED BALL CHECK VALVE; WEAPON SYSTEM ESSENTIAL; END ITEM:THE F-15 AND F-4 AIRCRAFT IN; Height: 1.062 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Thread Quantity Per Inch: 27. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-844-8635 still in active supply?

NSN 4730-00-844-8635 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com