PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13881Flange Adapter

Testek Llc Dba Testek Solutions · NSN 4920-01-072-4910 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-072-4910 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-072-4910. Primary manufacturer part number: 13881.
Features
  • Flange Adapter — FSC 4920
  • General Characteristics Item Description: ALUMINUM-108; 4 HOLES EA 0.531 IN. DIA EQUALLY SPACED 7.250 PORM .003 B.C. SMALL END IS 4.500 IN. OD,3.250 IN. ID; 4.625 IN. LG,LARGE END IS 9.000 IN. OD,3.000 IN. ID IN
  • 1 verified cross-reference
  • Primary manufacturer: Testek Llc Dba Testek Solutions
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Flange Adapter, cataloged under National Stock Number 4920-01-072-4910, 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 Testek Llc Dba Testek Solutions. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-072-4910
Primary Part Number13881
Item NameFlange Adapter
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerTestek Llc Dba Testek Solutions
StatusACTIVE
General Characteristics Item DescriptionALUMINUM-108; 4 HOLES EA 0.531 IN. DIA EQUALLY SPACED 7.250 PORM .003 B.C. SMALL END IS 4.500 IN. OD,3.250 IN. ID; 4.625 IN. LG,LARGE END IS 9.000 IN. OD,3.000 IN. ID IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
7510-00-286-575713881 INTERCHANGEABLE
Pencil
Dixon Ticonderoga Co
5950-00-974-5780SM-C-502641-1 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-987-149013881 INTERCHANGEABLE
Switch,push
Rocker Solenoid Co Dba Rocker Solenoid Co
3110-01-150-798413881 INTERCHANGEABLE
Bearing
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
5315-01-307-7969 INTERCHANGEABLE
Pin,spring
4920-01-572-6598313-721 INTERCHANGEABLE
Coupler,t M12,aircr
Ajax Tocco Magnethermic Corporation Dba Pines Engineering Div Pines Engineering
Cross-Reference Index
Part NumberManufacturer
13881 PRIMARY Testek Llc Dba Testek Solutions (USA)
Related Parts
7510-00-286-5757INTERCHANGEABLE
PENCIL
13881
5950-00-974-5780INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-C-502641-1
5930-00-987-1490INTERCHANGEABLE
SWITCH,PUSH
13881
3110-01-150-7984INTERCHANGEABLE
BEARING
13881
5315-01-307-7969INTERCHANGEABLE
PIN,SPRING
4920-01-572-6598INTERCHANGEABLE
COUPLER,T M12,AIRCR
313-721

Frequently Asked Questions

What is NSN 4920-01-072-4910?

NSN 4920-01-072-4910 is a Flange Adapter, manufactured by Testek Llc Dba Testek Solutions, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-072-4910?

NSN 4920-01-072-4910 has 1 cross-referenced part number: 13881 (Testek Llc Dba Testek Solutions).

What NSN replaces 4920-01-072-4910?

There are 6 known substitutes for 4920-01-072-4910: 7510-00-286-5757, 5950-00-974-5780, 5930-00-987-1490 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13881?

Key specifications for 13881: General Characteristics Item Description: ALUMINUM-108; 4 HOLES EA 0.531 IN. DIA EQUALLY SPACED 7.250 PORM .003 B.C. SMALL END IS 4.500 IN. OD,3.250 IN. ID; 4.625 IN. LG,LARGE END IS 9.000 IN. OD,3.000 IN. ID IN; End Item Identification: F100-PW-100 ENGINE ACFT AGE.. 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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