PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E20Holder,radiac Sample

Lfe Instruments a Mark IV Co · NSN 6665-01-397-7158 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-01-397-7158 — this item is cataloged by the U.S. Government under National Stock Number 6665-01-397-7158. Primary manufacturer part number: E20.
Features
  • Holder,radiac Sample — FSC 6665
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 1 verified cross-reference
  • Primary manufacturer: Lfe Instruments a Mark IV Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Holder,radiac Sample, cataloged under National Stock Number 6665-01-397-7158, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lfe Instruments a Mark IV Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN6665-01-397-7158
Primary Part NumberE20
Item NameHolder,radiac Sample
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerLfe Instruments a Mark IV Co
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-8533D20 INTERCHANGEABLE
Bearing,ball,thrust
Schaeffler Group Usa Inc
5940-00-159-0425 INTERCHANGEABLE
Splice,conductor
6665-00-171-9567559B1 INTERCHANGEABLE
Meter,roentgen Rate
Cardwell Condenser Corp Lapointe-Admiral Div
5950-00-231-3715C13677 INTERCHANGEABLE
Transformer,power
Electronic Transformer Corp Div Electronic Transformer Corporation
5310-00-262-5128026116 INTERCHANGEABLE
Nut,plain,hexagon
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5340-00-271-8878 INTERCHANGEABLE
Clamp,loop
5905-00-581-380820J600 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
4710-00-712-0495 INTERCHANGEABLE
Tubing,nonmetallic
1005-01-043-7507 INTERCHANGEABLE
Guide,firing Pin
6145-01-044-0855 INTERCHANGEABLE
Cable,special Purpose,electrical
Cross-Reference Index
Part NumberManufacturer
E20 Lfe Instruments a Mark IV Co (USA)
Related Parts
3110-00-100-8533INTERCHANGEABLE
BEARING,BALL,THRUST
D20
5940-00-159-0425INTERCHANGEABLE
SPLICE,CONDUCTOR
6665-00-171-9567INTERCHANGEABLE
METER,ROENTGEN RATE
559B1
5950-00-231-3715INTERCHANGEABLE
TRANSFORMER,POWER
C13677
5310-00-262-5128INTERCHANGEABLE
NUT,PLAIN,HEXAGON
026116
5340-00-271-8878INTERCHANGEABLE
CLAMP,LOOP
5905-00-581-3808INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
20J600
4710-00-712-0495INTERCHANGEABLE
TUBING,NONMETALLIC
1005-01-043-7507INTERCHANGEABLE
GUIDE,FIRING PIN
6145-01-044-0855INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
8310-01-278-6780INTERCHANGEABLE
THREAD
E20
4940-01-569-5579INTERCHANGEABLE
MIXER,LIQUID,REVOLVING SHAFT
E-2.0

Frequently Asked Questions

What is NSN 6665-01-397-7158?

NSN 6665-01-397-7158 is a Holder,radiac Sample, manufactured by Lfe Instruments a Mark IV Co, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-01-397-7158?

NSN 6665-01-397-7158 has 1 cross-referenced part number: E20 (Lfe Instruments a Mark IV Co).

What NSN replaces 6665-01-397-7158?

There are 12 known substitutes for 6665-01-397-7158: 3110-00-100-8533, 5940-00-159-0425, 6665-00-171-9567 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of E20?

Key specifications for E20: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 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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