PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20381Safety Chain and Support

Eagle Crusher Co Inc Dba Stedman Machine Co · NSN 3820-00-406-6634 · FSC 3820 · No Item Name Available
Verified by PartsTable
NSN 3820-00-406-6634 — this item is cataloged by the U.S. Government under National Stock Number 3820-00-406-6634. Primary manufacturer part number: 20381.
Features
  • Safety Chain and Support — FSC 3820
  • General Characteristics Item Description: 45.500 IN. LG OF SUPPORT PIPE,1.500 IN. OD PIPE,CHAIN ENDS WELDED TO PIPE AT 90 DEG ANGLE IN
  • 1 verified cross-reference
  • Primary manufacturer: Eagle Crusher Co Inc Dba Stedman Machine Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Safety Chain and Support, cataloged under National Stock Number 3820-00-406-6634, is classified within Federal Supply Class 3820 (No Item Name Available) of the Construction, Mining, Excavating Equipment group. The primary manufacturer of record is Eagle Crusher Co Inc Dba Stedman Machine Co. Government technical data includes 1 verified specification, 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
NSN3820-00-406-6634
Primary Part Number20381
Item NameSafety Chain and Support
FSC / FSG3820 / 38 — No Item Name Available
ManufacturerEagle Crusher Co Inc Dba Stedman Machine Co
StatusACTIVE
General Characteristics Item Description45.500 IN. LG OF SUPPORT PIPE,1.500 IN. OD PIPE,CHAIN ENDS WELDED TO PIPE AT 90 DEG ANGLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-281-6506 INTERCHANGEABLE
Ring,retaining
5330-00-505-6186AWR4 INTERCHANGEABLE
Seal,special
Dixon Valve & Coupling Company, Llc Div Dixon Fire
2530-00-737-10107371010 INTERCHANGEABLE
Brake Drum
U S Army Tank Automotive Command Amsta-Im-Mm
5340-00-911-245420381 INTERCHANGEABLE
Hinge,access Door
Silver King Refrigeration Inc.
6625-00-976-128331-2038-1 INTERCHANGEABLE
Adapter,test
Amphenol Corporation Div Amphenol Rf
5342-01-194-8728 INTERCHANGEABLE
Hinge
4320-01-210-9629206-735 INTERCHANGEABLE
Parts Kit,rotary Pump
Graco Inc.
4470-01-211-2566 INTERCHANGEABLE
Housing,special
3020-01-221-147320381 INTERCHANGEABLE
Gear,internal
Dana Commercial Vehicle Products, Llc
1680-01-345-76492038-1 INTERCHANGEABLE
Filter,aircraft Instruments
B/e Aerospace, Inc.
Cross-Reference Index
Part NumberManufacturer
20381 PRIMARY Eagle Crusher Co Inc Dba Stedman Machine Co (USA)
Related Parts
5325-00-281-6506INTERCHANGEABLE
RING,RETAINING
5330-00-505-6186INTERCHANGEABLE
SEAL,SPECIAL
AWR4
2530-00-737-1010INTERCHANGEABLE
BRAKE DRUM
7371010
5340-00-911-2454INTERCHANGEABLE
HINGE,ACCESS DOOR
20381
6625-00-976-1283INTERCHANGEABLE
ADAPTER,TEST
31-2038-1
5342-01-194-8728INTERCHANGEABLE
HINGE
4320-01-210-9629INTERCHANGEABLE
PARTS KIT,ROTARY PUMP
206-735
4470-01-211-2566INTERCHANGEABLE
HOUSING,SPECIAL
3020-01-221-1473INTERCHANGEABLE
GEAR,INTERNAL
20381
1680-01-345-7649INTERCHANGEABLE
FILTER,AIRCRAFT INSTRUMENTS
2038-1
6640-01-421-5514INTERCHANGEABLE
PANEL,CONTROL,CLEAN
20381
4820-01-442-8259INTERCHANGEABLE
VALVE,SAFETY RELIEF
2038101E0005

Frequently Asked Questions

What is NSN 3820-00-406-6634?

NSN 3820-00-406-6634 is a Safety Chain and Support, manufactured by Eagle Crusher Co Inc Dba Stedman Machine Co, classified under FSC 3820 (No Item Name Available). Status: active.

What are the part numbers for NSN 3820-00-406-6634?

NSN 3820-00-406-6634 has 1 cross-referenced part number: 20381 (Eagle Crusher Co Inc Dba Stedman Machine Co).

What NSN replaces 3820-00-406-6634?

There are 12 known substitutes for 3820-00-406-6634: 5325-00-281-6506, 5330-00-505-6186, 2530-00-737-1010 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20381?

Key specifications for 20381: General Characteristics Item Description: 45.500 IN. LG OF SUPPORT PIPE,1.500 IN. OD PIPE,CHAIN ENDS WELDED TO PIPE AT 90 DEG ANGLE IN. 1 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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