PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21642Shell Assy

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 6610-00-544-5550 · FSC 6610 · No Item Name Available
Verified by PartsTable
NSN 6610-00-544-5550 — this item is cataloged by the U.S. Government under National Stock Number 6610-00-544-5550. Primary manufacturer part number: 21642.
Features
  • Shell Assy — FSC 6610
  • 1 verified cross-reference
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shell Assy, cataloged under National Stock Number 6610-00-544-5550, is classified within Federal Supply Class 6610 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameShell Assy
FSC / FSG6610 — No Item Name Available (FSG 66)
ManufacturersUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems (CAGE 50027)
Technical Specifications
ParameterValue
NSN6610-00-544-5550
Primary Part Number21642
Item NameShell Assy
FSC / FSG6610 / 66 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6240-00-027-260387-0770 INTERCHANGEABLE
Lamp,incandescent
Finnigan Corporation
5330-00-839-239921642 INTERCHANGEABLE
Packing,preformed
Schneider Electric Systems Usa Inc
2910-01-118-218021674 INTERCHANGEABLE
Clamp,filter
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4820-01-163-46787-113100214-3 INTERCHANGEABLE
Valve,relief,pressure and Temper
The Boeing Company Div Services
4310-01-278-2015216-42 INTERCHANGEABLE
Compressor,reciprocating
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3020-01-294-324021642 INTERCHANGEABLE
Gear,helical
Tulsa Winch, Inc.
4820-01-296-702021642 INTERCHANGEABLE
Disk,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
1650-01-327-395721642 INTERCHANGEABLE
Pad,hanger Arm
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
21642 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
6240-00-027-2603INTERCHANGEABLE
LAMP,INCANDESCENT
87-0770
5330-00-839-2399INTERCHANGEABLE
PACKING,PREFORMED
21642
2910-01-118-2180INTERCHANGEABLE
CLAMP,FILTER
21674
4820-01-163-4678INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
7-113100214-3
4310-01-278-2015INTERCHANGEABLE
COMPRESSOR,RECIPROCATING
216-42
3020-01-294-3240INTERCHANGEABLE
GEAR,HELICAL
21642
4820-01-296-7020INTERCHANGEABLE
DISK,VALVE
21642
1650-01-327-3957INTERCHANGEABLE
PAD,HANGER ARM
21642

Frequently Asked Questions

What is NSN 6610-00-544-5550?

NSN 6610-00-544-5550 is a Shell Assy, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 6610 (No Item Name Available). Status: active.

What are the part numbers for NSN 6610-00-544-5550?

NSN 6610-00-544-5550 has 1 cross-referenced part number: 21642 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 6610-00-544-5550?

There are 8 known substitutes for 6610-00-544-5550: 6240-00-027-2603, 5330-00-839-2399, 2910-01-118-2180 and 5 more. Verify interchangeability with system specifications before substitution.

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