PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B542Adapter Box,test P

Lockheed Martin Corp · NSN 4920-00-113-9998 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-00-113-9998 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-113-9998. Primary manufacturer part number: B542.
Features
  • Adapter Box,test P — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Adapter Box,test P, cataloged under National Stock Number 4920-00-113-9998, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Lockheed Martin Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter Box,test P
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersLockheed Martin Corp (CAGE 98897)
Technical Specifications
ParameterValue
NSN4920-00-113-9998
Primary Part NumberB542
Item NameAdapter Box,test P
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3030-00-117-92854638 INTERCHANGEABLE
Belts,v,matched Set
Harbormaster Marine, Inc
3110-00-142-4332177030-5 INTERCHANGEABLE
Bearing,ball,airframe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
B542 PRIMARY Lockheed Martin Corp (USA)
Related Parts
3030-00-117-9285INTERCHANGEABLE
BELTS,V,MATCHED SET
4638
3110-00-142-4332INTERCHANGEABLE
BEARING,BALL,AIRFRAME
177030-5

Frequently Asked Questions

What is NSN 4920-00-113-9998?

NSN 4920-00-113-9998 is a Adapter Box,test P, manufactured by Lockheed Martin Corp, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-00-113-9998?

NSN 4920-00-113-9998 has 1 cross-referenced part number: B542 (Lockheed Martin Corp).

What NSN replaces 4920-00-113-9998?

There are 2 known substitutes for 4920-00-113-9998: 3030-00-117-9285, 3110-00-142-4332. Verify interchangeability with system specifications before substitution.

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