PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12777Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-00-723-8775 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-723-8775 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-723-8775. Primary manufacturer part number: 12777.
Features
  • Seat,helical Compression Spring — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-723-8775, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Catalog Facts
Item NameSeat,helical Compression Spring
FSC / FSG5340 — No Item Name Available (FSG 53)
ManufacturersEaton Aerospace Llc Dba Eaton Aerospace Jackson (CAGE 99643)
Technical Specifications
ParameterValue
NSN5340-00-723-8775
Primary Part Number12777
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5905-00-052-0609120-8076 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Vishay Sprague Inc
5133-00-061-627510913 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
4410-00-326-6023 INTERCHANGEABLE
Cover,handhole
5960-01-022-4068016-0260-00 INTERCHANGEABLE
Visor,cathode Ray Tube
Tektronix, Inc.
9905-01-367-200012777 INTERCHANGEABLE
Plate,instruction
DP Manufacturing Inc.
5340-01-393-744413230E4888 INTERCHANGEABLE
Leaf,butt Hinge
Cecom Lr Center
4810-01-438-7568B-800-12777-503 INTERCHANGEABLE
Actuator,electromechanical,rotar
B.w. Elliott Manufacturing Co., Llc
4810-01-438-7787B-800-12777-510 INTERCHANGEABLE
Actuator,electromechanical,rotar
B.w. Elliott Manufacturing Co., Llc
6625-01-444-08821277-7 INTERCHANGEABLE
Plug-in Unit,electrical-Electron
Astronics Test Systems Inc
4720-01-499-3231 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
12777 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5905-00-052-0609INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
120-8076
5133-00-061-6275INTERCHANGEABLE
DRILL,TWIST
10913
4410-00-326-6023INTERCHANGEABLE
COVER,HANDHOLE
5960-01-022-4068INTERCHANGEABLE
VISOR,CATHODE RAY TUBE
016-0260-00
9905-01-367-2000INTERCHANGEABLE
PLATE,INSTRUCTION
12777
5340-01-393-7444INTERCHANGEABLE
LEAF,BUTT HINGE
13230E4888
4810-01-438-7568INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
B-800-12777-503
4810-01-438-7787INTERCHANGEABLE
ACTUATOR,ELECTROMECHANICAL,ROTAR
B-800-12777-510
6625-01-444-0882INTERCHANGEABLE
PLUG-IN UNIT,ELECTRICAL-ELECTRON
1277-7
4720-01-499-3231INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5999-01-576-9093INTERCHANGEABLE
CAP,ELECTRICAL
4730-01-730-9948INTERCHANGEABLE
FLANGE,PIPE
12777

Frequently Asked Questions

What is NSN 5340-00-723-8775?

NSN 5340-00-723-8775 is a Seat,helical Compression Spring, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-723-8775?

NSN 5340-00-723-8775 has 1 cross-referenced part number: 12777 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-00-723-8775?

There are 12 known substitutes for 5340-00-723-8775: 5905-00-052-0609, 5133-00-061-6275, 4410-00-326-6023 and 9 more. Verify interchangeability with system specifications before substitution.

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