PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5120-00-239-8686Lifter,valve Spring

Zim Manufacturing Co. · NSN 5120-00-239-8686 · FSC 5120 · No Item Name Available
Verified by PartsTable
Features
  • Lifter,valve Spring — FSC 5120
  • Offset Jaw Quantity: 2
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE AND 2 SIZE
  • Offset Jaw Usage Design: 1 PAIR FOR GMC/CONTINENTAL ENGINES OR 1 PAIR FOR ENGINES REQUIRING EXTRA OFFSET
  • Depth Adjustment: INCLUDED
  • Straight Jaw Quantity: 1
  • Lift Mechanism Type: C-FRAME
  • Spring Compressor: NOT PROVIDED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Lifter,valve Spring, cataloged under National Stock Number 5120-00-239-8686, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Zim Manufacturing Co.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-239-8686
Primary Part Number5120-00-239-8686
Item NameLifter,valve Spring
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerZim Manufacturing Co.
StatusCANCELLED
Offset Jaw Quantity2
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE AND 2 SIZE
Offset Jaw Usage Design1 PAIR FOR GMC/CONTINENTAL ENGINES OR 1 PAIR FOR ENGINES REQUIRING EXTRA OFFSET
Depth AdjustmentINCLUDED
Straight Jaw Quantity1
Lift Mechanism TypeC-FRAME
Spring CompressorNOT PROVIDED
Opening Capacity10.000 INCHES MINIMUM AND 10.500 INCHES MAXIMUM IN
Depth9.750 INCHES MINIMUM AND 10.250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5120-00-223-8850 INTERCHANGEABLE
Lifter,valve Spring
5120-00-237-8663 INTERCHANGEABLE
Compressor,valve Spring
5120-00-239-0326CF49B INTERCHANGEABLE
Lifter,valve Spring
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-516-4226 INTERCHANGEABLE
Compressor,valve Spring
5120-00-529-2283VSC-1 INTERCHANGEABLE
Lifter,valve Spring
Nestor Sales Llc Dba Aim Supply Co Div Government Sales Division
Cross-Reference Index
Part NumberManufacturer
5120-00-239-8686 Zim Manufacturing Co. (USA)
GGG-L-350 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-3037 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
GGG-L-350 TY1CL1STASZ2 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-223-8850INTERCHANGEABLE
LIFTER,VALVE SPRING
5120-00-237-8663INTERCHANGEABLE
COMPRESSOR,VALVE SPRING
5120-00-239-0326INTERCHANGEABLE
LIFTER,VALVE SPRING
CF49B
5120-00-516-4226INTERCHANGEABLE
COMPRESSOR,VALVE SPRING
5120-00-529-2283INTERCHANGEABLE
LIFTER,VALVE SPRING
VSC-1

Frequently Asked Questions

What is NSN 5120-00-239-8686?

NSN 5120-00-239-8686 is a Lifter,valve Spring, manufactured by Zim Manufacturing Co., classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-239-8686?

NSN 5120-00-239-8686 has 4 cross-referenced part numbers: 5120-00-239-8686 (Zim Manufacturing Co.), GGG-L-350 (Federal Specifications Promulgated by General Services Administration Washington DC), A-A-3037 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), GGG-L-350 TY1CL1STASZ2 (General Services Administration Federal Supply Service).

What NSN replaces 5120-00-239-8686?

There are 5 known substitutes for 5120-00-239-8686: 5120-00-223-8850, 5120-00-237-8663, 5120-00-239-0326 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5120-00-239-8686?

Key specifications for 5120-00-239-8686: Offset Jaw Quantity: 2; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE AND 2 SIZE; Offset Jaw Usage Design: 1 PAIR FOR GMC/CONTINENTAL ENGINES OR 1 PAIR FOR ENGINES REQUIRING EXTRA OFFSET; Depth Adjustment: INCLUDED. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-239-8686 still in active supply?

NSN 5120-00-239-8686 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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