PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50542-1Arm

Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc. · NSN 3990-01-287-7218 · FSC 3990 · No Item Name Available
Verified by PartsTable
NSN 3990-01-287-7218 — this item is cataloged by the U.S. Government under National Stock Number 3990-01-287-7218. Primary manufacturer part number: 50542-1.
Features
  • Arm — FSC 3990
  • 1 verified cross-reference
  • Primary manufacturer: Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Arm, cataloged under National Stock Number 3990-01-287-7218, is classified within Federal Supply Class 3990 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameArm
FSC / FSG3990 — No Item Name Available (FSG 39)
ManufacturersPemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc. (CAGE 99489)
Technical Specifications
ParameterValue
NSN3990-01-287-7218
Primary Part Number50542-1
Item NameArm
FSC / FSG3990 / 39 — No Item Name Available
ManufacturerPemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2915-00-588-0474505421 INTERCHANGEABLE
Plate,roller Retaining
Hamilton Sundstrand Corporation Dba Collins Aerospace
4720-01-308-791513404004-0140 INTERCHANGEABLE
Hose Assembly,nonmetallic
Smiths Tubular Systems-Laconia, Inc.
5998-01-339-088250542-1 INTERCHANGEABLE
Printed Wiring Board
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
5365-01-546-5348505421 INTERCHANGEABLE
Spacer,sleeve
Blount International Inc
1650-01-665-162150542-1 INTERCHANGEABLE
Slide,directional Control Linear
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
50542-1 PRIMARY Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc. (USA)
Related Parts
2915-00-588-0474INTERCHANGEABLE
PLATE,ROLLER RETAINING
505421
4720-01-308-7915INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
13404004-0140
5998-01-339-0882INTERCHANGEABLE
PRINTED WIRING BOARD
50542-1
5365-01-546-5348INTERCHANGEABLE
SPACER,SLEEVE
505421
1650-01-665-1621INTERCHANGEABLE
SLIDE,DIRECTIONAL CONTROL LINEAR
50542-1

Frequently Asked Questions

What is NSN 3990-01-287-7218?

NSN 3990-01-287-7218 is a Arm, manufactured by Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc., classified under FSC 3990 (No Item Name Available). Status: active.

What are the part numbers for NSN 3990-01-287-7218?

NSN 3990-01-287-7218 has 1 cross-referenced part number: 50542-1 (Pemco Engineers, Inc. Dba Pemco Engineers, Inc. Div Pemco Engineers, Inc.).

What NSN replaces 3990-01-287-7218?

There are 5 known substitutes for 3990-01-287-7218: 2915-00-588-0474, 4720-01-308-7915, 5998-01-339-0882 and 2 more. Verify interchangeability with system specifications before substitution.

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