PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20955Spring,helical,compression

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5360-00-980-2311 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-980-2311 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-980-2311. Primary manufacturer part number: 20955.
Features
  • Spring,helical,compression — FSC 5360
  • End Style: SPRING END,SQUARED AND GROUND BOTH ENDS
  • Spring Deflection Rate: 20.000 POUNDS PER INCH NOMINAL LBS
  • Material Document and Classification: AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Coil Helix Direction: RIGHT-HAND
  • Material: STEEL COMP 1090 OVERALL
  • Spring Free Length: 2.170 INCHES MINIMUM AND 2.210 INCHES MAXIMUM IN
  • Coil Quantity: 14
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 1090 Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-00-980-2311, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-980-2311
Primary Part Number20955
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
End StyleSPRING END,SQUARED AND GROUND BOTH ENDS
Spring Deflection Rate20.000 POUNDS PER INCH NOMINAL LBS
Material Document and ClassificationAMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Coil Helix DirectionRIGHT-HAND
MaterialSTEEL COMP 1090 OVERALL
Spring Free Length2.170 INCHES MINIMUM AND 2.210 INCHES MAXIMUM IN
Coil Quantity14
Spring Free Outside Diameter0.503 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL
Inside Diameter0.379 INCHES MINIMUM AND 0.389 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-020-2797900027-94 INTERCHANGEABLE
Switch,rotary
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5315-00-229-3705 INTERCHANGEABLE
Key,machine
5325-00-350-341320955 INTERCHANGEABLE
Ring,retaining
Renk America Llc Div Renk America
3040-00-392-7823SM-B-148456 INTERCHANGEABLE
Lever,manual Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6685-00-474-5658 INTERCHANGEABLE
Insulator-Bridge
5360-00-757-448711996 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5330-00-926-005320955 INTERCHANGEABLE
Seal
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
6640-00-966-888811-996 INTERCHANGEABLE
Paper,lens
Fisher Scientific Worldwide
4930-01-108-7203920955 INTERCHANGEABLE
Piston-Bottom
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
6145-01-160-225311996 INTERCHANGEABLE
Cable,power,electrical
The First Electronics Corporation
Cross-Reference Index
Part NumberManufacturer
20955 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
307814R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
11996 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
307814R1 Komatsu American Intl Co (USA)
307814R1 Komatsu America Corp. (USA)
307814R1 Navistar International Corporation Dba Navistar (USA)
Related Parts
5930-00-020-2797INTERCHANGEABLE
SWITCH,ROTARY
900027-94
5315-00-229-3705INTERCHANGEABLE
KEY,MACHINE
5325-00-350-3413INTERCHANGEABLE
RING,RETAINING
20955
3040-00-392-7823INTERCHANGEABLE
LEVER,MANUAL CONTROL
SM-B-148456
6685-00-474-5658INTERCHANGEABLE
INSULATOR-BRIDGE
5360-00-757-4487INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
11996
5330-00-926-0053INTERCHANGEABLE
SEAL
20955
6640-00-966-8888INTERCHANGEABLE
PAPER,LENS
11-996
4930-01-108-7203INTERCHANGEABLE
PISTON-BOTTOM
920955
6145-01-160-2253INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
11996
3820-01-172-0686INTERCHANGEABLE
SPIDER,REEL
11996
6110-01-244-2996INTERCHANGEABLE
DISTRIBUTION BOX

Frequently Asked Questions

What is NSN 5360-00-980-2311?

NSN 5360-00-980-2311 is a Spring,helical,compression, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-980-2311?

NSN 5360-00-980-2311 has 6 cross-referenced part numbers: 20955 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 307814R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 11996 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 307814R1 (Komatsu American Intl Co), 307814R1 (Komatsu America Corp.) and 1 more.

What NSN replaces 5360-00-980-2311?

There are 12 known substitutes for 5360-00-980-2311: 5930-00-020-2797, 5315-00-229-3705, 5325-00-350-3413 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20955?

Key specifications for 20955: End Style: SPRING END,SQUARED AND GROUND BOTH ENDS; Spring Deflection Rate: 20.000 POUNDS PER INCH NOMINAL LBS; Material Document and Classification: AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Coil Helix Direction: RIGHT-HAND. 10 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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