Defense Program Sustainment Analysis

Obsolescence Risk and Impact

M1 Abrams Main Battle Tank

Updated March 2024

6,794

Parts with Declining Procurement

289

Manufacturers with Declining Procurement

49,402

Obsolete Parts

13,306

Sole Sourced Parts

Obsolescence Risk and Impact: M1 Abrams

Ark.ai conducted a sustainment program analysis of the M1 Abrams Main Battle Tank program, examining the vendors, their suppliers, manufacturers, shippers, and other members of the supply chain ‚Äì as well as the critical parts and NiiNs the M1 program relies on. The program analysis focuses particularly on obsolescence risk, including obsolete NiiNs, declining procurement, and sole sourced parts.

The analysis of the M1 program resulted in the following statistics. There are 6,794 Parts with Declining Procurement and 289 Manufacturers with Declining Procurement. The count of Obsolete Parts is 49,402 and the M1 program is dependent on 13,306 Sole Sourced Parts.

Information about the critical vendors for the M1 program, as well as a list of the obsolete and sole sourced parts, are included in the following tables.

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Top Organizations by NiiN Count

Name	Count of NiiNs	Dollars Awarded	Average Unit Price
U.S. Army TACOM	10,206	$1,336,287	$46,886
Rockwell Collins, Inc.	962	$67,378	$106
Honeywell International Inc.	835	$661,147	$314
Oshkosh Defense, LLC	407	$3,768	$8.63
Honeywell International Inc.	381	$317,804	$627

Top Sole Sourced NiiNs

NiiN	Description	Unit Price	Vendor Name
015753237	RACK,AMMUNITION STOWAGE	$77,098	WEGMANN USA INC
014398620	RACK,AMMUNITION STOWAGE	$66,541	WEGMANN USA INC
015761960	CIRCUIT CARD ASSEMBLY	$30,000	EDEL ENGINEERING DEVELOPMENT CO
016763774	RADIATOR,VEHICULAR COMPARTMENT HEATER	$23,665	MARVIN LAND SYSTM INC
015064326	CHARGING KIT,PRESSURIZING	$21,386	MEGGITT DEFENSE SYSTM INC

Top Obsolete NiiNs

NiiN	Description	WSDC Count	Authorized Suppliers
000509230	SCREW,MACHINE	3	1
002264829	BOLT,MACHINE	3	1
001848974	WASHER,FLAT	3	1
008091500	CLAMP,LOOP	3	1
007813926	SCREW,CAP,HEXAGON HEAD	3	1

Top Weapon System Designator Codes

WSDC	Name	NiiN Count	Percent of Total NiiNs
36A	TANK, ABRAMS M-1	29,140	96.0%
CWA	M1A2 ABRAMS TANK, 2350-01-328-5964 (EAA CMBT85PK3)	4,023	13.2%
94A	ABRAMS M1 ENGINE	1,330	4.4%
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ABOUT OBSOLESCENCE RISK AND IMPACT

Evaluate the sustainability of critical national security programs and weapon systems. Understand critical vendors and manufacturers, the parts and NiiNs they supply for sustainment programs, the obsolescence risk for those NiiNs, and the potential impact on the program at large.

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