PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21693Spring,sector Gear

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5360-00-544-5559 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-544-5559 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-544-5559. Primary manufacturer part number: 21693.
Features
  • Spring,sector Gear — FSC 5360
  • 2 verified cross-references
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Power transmission and speed reduction
  • Rotary motion transfer
General Description

The Spring,sector Gear, cataloged under National Stock Number 5360-00-544-5559, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. This item has 2 commercial cross-references from 2 manufacturers, 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 NameSpring,sector Gear
FSC / FSG5360 — No Item Name Available (FSG 53)
ManufacturersGuidance Technology Inc (CAGE 78626); Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (CAGE 50027)
Technical Specifications
ParameterValue
NSN5360-00-544-5559
Primary Part Number21693
Item NameSpring,sector Gear
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6620-00-006-6418 INTERCHANGEABLE
Gage,pressure,dial Indicating
6625-00-043-386021693 INTERCHANGEABLE
Amplifier-Detector
Electrodynamics Inc Div L3harris Electrodynamics Inc
5310-00-318-4336120127 INTERCHANGEABLE
Washer,flat
Am General Llc
2910-00-360-4544C105-257 INTERCHANGEABLE
Shaft
Zenith Fuel Systems Llc
2835-00-659-054621693 INTERCHANGEABLE
Guard Assembly,actuator
Alamo Aircraft, Ltd.
4320-00-937-111821693 INTERCHANGEABLE
Hub,short,pump
Industrial Technologies and Services Llc
5998-01-478-910821693 INTERCHANGEABLE
Circuit Card Assembly
Giga-Tronics Incorporated Dba Giga-Tronics
5340-01-678-165221693 INTERCHANGEABLE
Bracket,angle
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
Cross-Reference Index
Part NumberManufacturer
21693 Guidance Technology Inc (USA)
21693 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
6620-00-006-6418INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6625-00-043-3860INTERCHANGEABLE
AMPLIFIER-DETECTOR
21693
5310-00-318-4336INTERCHANGEABLE
WASHER,FLAT
120127
2910-00-360-4544INTERCHANGEABLE
SHAFT
C105-257
2835-00-659-0546INTERCHANGEABLE
GUARD ASSEMBLY,ACTUATOR
21693
4320-00-937-1118INTERCHANGEABLE
HUB,SHORT,PUMP
21693
5998-01-478-9108INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21693
5340-01-678-1652INTERCHANGEABLE
BRACKET,ANGLE
21693

Frequently Asked Questions

What is NSN 5360-00-544-5559?

NSN 5360-00-544-5559 is a Spring,sector Gear, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-544-5559?

NSN 5360-00-544-5559 has 2 cross-referenced part numbers: 21693 (Guidance Technology Inc), 21693 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 5360-00-544-5559?

There are 8 known substitutes for 5360-00-544-5559: 6620-00-006-6418, 6625-00-043-3860, 5310-00-318-4336 and 5 more. Verify interchangeability with system specifications before substitution.

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