Defense Program Sustainment Analysis

Obsolescence Risk and Impact

SSN-688 Los Angeles Class Attack Submarine

Updated March 2024

11,846

Parts with Declining Procurement

1,911

Manufacturers with Declining Procurement

139,289

Obsolete Parts

32,955

Sole Sourced Parts

Obsolescence Risk and Impact: SSN-688 Los Angeles Class

Ark.ai conducted a sustainment program analysis of the SSN-688 Los Angeles Class Attack Submarine 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 SSN-688 Los Angeles Class program relies on. The program analysis focuses particularly on obsolescence risk, including obsolete NiiNs, declining procurement, and sole sourced parts.

The analysis of the SSN-688 Los Angeles Class program resulted in the following statistics. There are 11,846 Parts with Declining Procurement and 1,911 Manufacturers with Declining Procurement. The count of Obsolete Parts is 139,289 and the SSN-688 Los Angeles Class program is dependent on 32,955 Sole Sourced Parts.

Information about the critical vendors for the SSN-688 Los Angeles Class 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
Electric Boat Corporation	2,619	$679,209	$1,820.00
Rockwell Collins, Inc.	2,585	$38,894	$2,412
Keysight Technologies, Inc.	2,498	$23,475	$128.16
L3 Technologies, Inc.	1,136	$1,316,572	$4,304.64
Lockheed Martin Corporation	1,092	$1,413,419	$2,655

Top Sole Sourced NiiNs

NiiN	Description	Unit Price	Vendor Name
014875108	VALVE,SAFETY RELIEF	$237,715	VACCO IND
012938504	POWER SUPPLY	$153,000	RANTEC POWER SYSTM INC
010100435	BASKET ASSEMBLY	$127,731	DUTCH VALLEY SUPPLY CO
011380183	COOLER,FLUID,INDUSTRIAL	$124,275	FLUID HANDLING LLC
010298339	EJECTOR,JET	$113,908	DC FABRICATORS INC

Top Obsolete NiiNs

NiiN	Description	WSDC Count	Authorized Suppliers
009338120	WASHER,LOCK	1	36
009296395	WASHER,LOCK	1	38
009338121	WASHER,LOCK	1	23
009338118	WASHER,LOCK	1	34
009338119	WASHER,LOCK	1	21

Top Weapon System Designator Codes

WSDC	Name	NiiN Count	Percent of Total NiiNs
EXN	LOS ANGELES CLASS SSN (688)	75,254	97.2%
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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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