PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B31777Spring,helical,compression

Eaton Aerospace, Llc Dba Jackson South · NSN 5360-00-236-8589 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-236-8589 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-236-8589. Primary manufacturer part number: B31777.
Features
  • Spring,helical,compression — FSC 5360
  • Inside Diameter: 0.156 INCHES NOMINAL IN
  • Spring Free Length: 0.750 INCHES NOMINAL IN
  • Style Designator: TAPERED
  • Spring Free Outside Diameter: 0.313 INCHES NOMINAL IN
  • Load Rating: 0.20 POUNDS NOMINAL LBS
  • Spring Deflection Rate: 32.000 POUNDS PER INCH NOMINAL LBS
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Copper Alloy 510 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-236-8589, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-236-8589
Primary Part NumberB31777
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Inside Diameter0.156 INCHES NOMINAL IN
Spring Free Length0.750 INCHES NOMINAL IN
Style DesignatorTAPERED
Spring Free Outside Diameter0.313 INCHES NOMINAL IN
Load Rating0.20 POUNDS NOMINAL LBS
Spring Deflection Rate32.000 POUNDS PER INCH NOMINAL LBS
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Solid Length0.109 INCHES NOMINAL IN
Coil Helix DirectionLEFT-HAND
Material Document and ClassificationMIL-W-16602 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY 510 OVERALL
Spring Length Under Load0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-081-3150356-170 INTERCHANGEABLE
Thermostat,flow Control
Standard-Thomson Corporation
5940-00-284-390931777 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
5985-00-496-124735849-7 INTERCHANGEABLE
Kit,flange,feed-Through
Andrew Llc
2590-00-696-05767A-12496 INTERCHANGEABLE
Cup,horn Wire Container
Fwd Seagrave Holdings Lp
5133-00-839-549731777 INTERCHANGEABLE
Drill,twist
New York Twist Drill Inc
Cross-Reference Index
Part NumberManufacturer
B31777 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
31777 Eaton Aerospace, Llc Dba Jackson South (USA)
274266PC4 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6685-00-081-3150INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
356-170
5940-00-284-3909INTERCHANGEABLE
TERMINAL,LUG
31777
5985-00-496-1247INTERCHANGEABLE
KIT,FLANGE,FEED-THROUGH
35849-7
2590-00-696-0576INTERCHANGEABLE
CUP,HORN WIRE CONTAINER
7A-12496
5133-00-839-5497INTERCHANGEABLE
DRILL,TWIST
31777

Frequently Asked Questions

What is NSN 5360-00-236-8589?

NSN 5360-00-236-8589 is a Spring,helical,compression, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-236-8589?

NSN 5360-00-236-8589 has 3 cross-referenced part numbers: B31777 (Eaton Aerospace, Llc Dba Jackson South), 31777 (Eaton Aerospace, Llc Dba Jackson South), 274266PC4 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5360-00-236-8589?

There are 5 known substitutes for 5360-00-236-8589: 6685-00-081-3150, 5940-00-284-3909, 5985-00-496-1247 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B31777?

Key specifications for B31777: Inside Diameter: 0.156 INCHES NOMINAL IN; Spring Free Length: 0.750 INCHES NOMINAL IN; Style Designator: TAPERED; Spring Free Outside Diameter: 0.313 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

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