PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55028Fitting Assembly

Northrop Grumman Systems Corporation · NSN 6615-00-983-1031 · FSC 6615 · No Item Name Available
Verified by PartsTable
NSN 6615-00-983-1031 — this item is cataloged by the U.S. Government under National Stock Number 6615-00-983-1031. Primary manufacturer part number: 55028.
Features
  • Fitting Assembly — FSC 6615
  • 4 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Fitting Assembly, cataloged under National Stock Number 6615-00-983-1031, is classified within Federal Supply Class 6615 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameFitting Assembly
FSC / FSG6615 — No Item Name Available (FSG 66)
ManufacturersHamilton Sundstrand Corporation (CAGE 13983); United Aircraft Corp Norden Division Ketay Dept (CAGE 97497); Hamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030); Northrop Grumman Systems Corporation (CAGE 95542)
Technical Specifications
ParameterValue
NSN6615-00-983-1031
Primary Part Number55028
Item NameFitting Assembly
FSC / FSG6615 / 66 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4730-00-289-2357SAE J514-3 8-8 140239C INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
5133-01-045-4943 INTERCHANGEABLE
Drill,twist
5961-01-092-6464 INTERCHANGEABLE
Semiconductor Device,diode
4820-01-150-358655028 INTERCHANGEABLE
Valve,check
Tyco Fire Products Lp
5330-01-277-882555028 INTERCHANGEABLE
Gasket
Flowserve Inc
6680-01-279-7533XM-36485-100-0510-O-L INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5985-01-593-9274550-2-8 INTERCHANGEABLE
Waveguide Assembly
Waveline Inc
Cross-Reference Index
Part NumberManufacturer
55028 Hamilton Sundstrand Corporation (USA)
55028 United Aircraft Corp Norden Division Ketay Dept
55028 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
55028 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
4730-00-289-2357INTERCHANGEABLE
ELBOW,PIPE
SAE J514-3 8-8 140239C
5133-01-045-4943INTERCHANGEABLE
DRILL,TWIST
5961-01-092-6464INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4820-01-150-3586INTERCHANGEABLE
VALVE,CHECK
55028
5330-01-277-8825INTERCHANGEABLE
GASKET
55028
6680-01-279-7533INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
XM-36485-100-0510-O-L
5985-01-593-9274INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
550-2-8

Frequently Asked Questions

What is NSN 6615-00-983-1031?

NSN 6615-00-983-1031 is a Fitting Assembly, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6615 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6615-00-983-1031?

NSN 6615-00-983-1031 has 4 cross-referenced part numbers: 55028 (Hamilton Sundstrand Corporation), 55028 (United Aircraft Corp Norden Division Ketay Dept), 55028 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 55028 (Northrop Grumman Systems Corporation).

What NSN replaces 6615-00-983-1031?

There are 7 known substitutes for 6615-00-983-1031: 4730-00-289-2357, 5133-01-045-4943, 5961-01-092-6464 and 4 more. Verify interchangeability with system specifications before substitution.

Is NSN 6615-00-983-1031 still in active supply?

NSN 6615-00-983-1031 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.
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