PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L20Tester,spring Resiliency

Ametek Inc · NSN 6635-00-182-7534 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-00-182-7534 — this item is cataloged by the U.S. Government under National Stock Number 6635-00-182-7534. Primary manufacturer part number: L20.
Features
  • Tester,spring Resiliency — FSC 6635
  • FSC Application Data: LABORATORY EQUIPMENT
  • Torque Indicating Wrench Usage Feature: NOT INCLUDED
  • Spring Type for Which Designed: COMPRESSION AND TENSION
  • Spring Travel Gage: NOT INCLUDED
  • Scale Smallest Increment Graduation: 0.2LB LBS
  • Reference Data and Literature: MFG CATALOG & A-A-59400
  • Unit Type: MECHANICAL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Tester,spring Resiliency, cataloged under National Stock Number 6635-00-182-7534, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6635-00-182-7534
Primary Part NumberL20
Item NameTester,spring Resiliency
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerAmetek Inc
StatusCANCELLED
FSC Application DataLABORATORY EQUIPMENT
Torque Indicating Wrench Usage FeatureNOT INCLUDED
Spring Type for Which DesignedCOMPRESSION AND TENSION
Spring Travel GageNOT INCLUDED
Scale Smallest Increment Graduation0.2LB LBS
Reference Data and LiteratureMFG CATALOG & A-A-59400
Unit TypeMECHANICAL
Spring Travel GageNOT INCLUDED
Torque Indicating Wrench Usage FeatureNOT INCLUDED
Purchase Description Identification58536-A-A-59400
Load Receiver TypeCHISEL HEAD AND CONE HEAD AND FLAT HEAD AND HOOK AND NOTCHED HEAD AND PUSH ROD
Mounting MethodPORTABLE
Scale Range+0.0 TO 20.0 POUNDS LBS
Measurement UnitPOUND
Purchase Description Identification58536-A-A-59400
Operation MethodMANUAL
Unit TypeMECHANICAL
Scale Range+0.0 TO 20.0 POUNDS LBS
Load Receiver TypeCHISEL HEAD AND CONE HEAD AND FLAT HEAD AND HOOK AND NOTCHED HEAD AND PUSH ROD
Spring Type for Which DesignedCOMPRESSION AND TENSION
FSC Application DataLABORATORY EQUIPMENT
Scale Smallest Increment Graduation0.2LB LBS
Reference Data and LiteratureMFG CATALOG & A-A-59400
Mounting MethodPORTABLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-285-83990606910-8 INTERCHANGEABLE
Seal,plain Encased
New Holland Construction
5340-00-426-0568L20 INTERCHANGEABLE
Grip,handle
Superior Equipment Co Buckeye Div
6635-00-545-8500 INTERCHANGEABLE
Tester,spring Resiliency
3110-00-554-3941177003-107 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6635-00-557-3237D150M INTERCHANGEABLE
Tester,spring Resiliency
Ametek, Inc. Div Aerospace & Defense
6635-00-578-5286 INTERCHANGEABLE
Tester,spring Resiliency
5340-00-598-8041H14 INTERCHANGEABLE
Strap,retaining
Minerallac Electric Co
6635-00-705-5469 INTERCHANGEABLE
Tester,spring Resiliency
6635-00-730-8603 INTERCHANGEABLE
Tester,spring Resiliency
6635-00-790-0733 INTERCHANGEABLE
Tester,spring Resiliency
Cross-Reference Index
Part NumberManufacturer
25-1003873-1 General Dynamics Mission Systems, Inc. (USA)
L20-00-00-26 Ametek, Inc. Div Aerospace & Defense (USA)
A-A-59400 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
L20 Apex Tool Group, Llc Dba Nicholson (USA)
AA59400-2A7 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
L20 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
L20M Ametek, Inc. Div Aerospace & Defense (USA)
L20 PRIMARY Ametek Inc (USA)
Related Parts
5330-00-285-8399INTERCHANGEABLE
SEAL,PLAIN ENCASED
0606910-8
5340-00-426-0568INTERCHANGEABLE
GRIP,HANDLE
L20
6635-00-545-8500INTERCHANGEABLE
TESTER,SPRING RESILIENCY
3110-00-554-3941INTERCHANGEABLE
BEARING,BALL,ANNULAR
177003-107
6635-00-557-3237INTERCHANGEABLE
TESTER,SPRING RESILIENCY
D150M
6635-00-578-5286INTERCHANGEABLE
TESTER,SPRING RESILIENCY
5340-00-598-8041INTERCHANGEABLE
STRAP,RETAINING
H14
6635-00-705-5469INTERCHANGEABLE
TESTER,SPRING RESILIENCY
6635-00-730-8603INTERCHANGEABLE
TESTER,SPRING RESILIENCY
6635-00-790-0733INTERCHANGEABLE
TESTER,SPRING RESILIENCY
3110-00-823-8563INTERCHANGEABLE
BEARING,BALL,LINEAR MOTION
A203242
5355-00-989-5792INTERCHANGEABLE
DIAL,CONTROL
LG-020

Frequently Asked Questions

What is NSN 6635-00-182-7534?

NSN 6635-00-182-7534 is a Tester,spring Resiliency, manufactured by Ametek Inc, classified under FSC 6635 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6635-00-182-7534?

NSN 6635-00-182-7534 has 8 cross-referenced part numbers: 25-1003873-1 (General Dynamics Mission Systems, Inc.), L20-00-00-26 (Ametek, Inc. Div Aerospace & Defense), A-A-59400 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), L20 (Apex Tool Group, Llc Dba Nicholson), AA59400-2A7 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 6635-00-182-7534?

There are 12 known substitutes for 6635-00-182-7534: 5330-00-285-8399, 5340-00-426-0568, 6635-00-545-8500 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L20?

Key specifications for L20: FSC Application Data: LABORATORY EQUIPMENT; Special Features: ACCURACY PORM 0.5% FULL SCALE; DIMESIONS: 8" L, 2.062" W, 1.844" H; INCLUDES 2 8-32 HOLES ON 4" CENTERS FOR ATTACHING TO A TEST STAND; "HOLD AT MAXIMUM" INDICATOR, BEZEL OF DIAL ROTATES TO ADJUST TO ZERO; Torque Indicating Wrench Usage Feature: NOT INCLUDED; Spring Type for Which Designed: COMPRESSION AND TENSION. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6635-00-182-7534 still in active supply?

NSN 6635-00-182-7534 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.
PartsTable Design LLC · partstable.com