Defense Program Sustainment Analysis

Obsolescence Risk and Impact

SSBN-826 Columbia Class Ballistic Missile Submarine

Updated March 2024

2,027

Parts with Declining Procurement

178

Manufacturers with Declining Procurement

11,949

Obsolete Parts

3,419

Sole Sourced Parts

Obsolescence Risk and Impact: SSBN-826

Ark.ai conducted a sustainment program analysis of the SSBN-826 Columbia Class Ballistic Missile 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 SSBN-826 program relies on. The program analysis focuses particularly on obsolescence risk, including obsolete NiiNs, declining procurement, and sole sourced parts.

The analysis of the SSBN-826 program resulted in the following statistics. There are 2,027 Parts with Declining Procurement and 178 Manufacturers with Declining Procurement. The count of Obsolete Parts is 11,949 and the SSBN-826 program is dependent on 3,419 Sole Sourced Parts.

Information about the critical vendors for the SSBN-826 program, as well as a list of the obsolete and sole sourced parts, is 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	1,231	$675,506	$3,349
SARGENT AEROSPACE & DEFENSE, LLC	356	$3,031,980	$3,486
SARGENT AEROSPACE DEFENSE LLC	313	$232,079	$8,282
LOCKHEED MARTIN CORPORATION	216	$43,734	$4,367
Hamilton Sundstrand Corporation	124	$265,048	$19,628

Top Sole Sourced NiiNs

NiiN	Description	Unit Price	Vendor Name
015017658	VALVE,LINEAR,DIRECTIONAL CONTROL	$88,028	SARGENT AEROSPACE AND DEFENSE LLC
016920902	CYLINDER,HYDRAULIC ACCUMULATOR	$87,387	HAMILTON SUNDSTRAND CORP
015182508	METER,SPECIAL SCALE	$71,790	VACCO IND
014501196	QUIET PRESSURE RELEASE DEVICE	$53,976	SARGENT AEROSPACE AND DEFENSE LLC
014835975	VALVE ASSEMBLY,MANIFOLD	$34,126	ELECTRIC BOAT CORP

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
KWN	COLUMBIA CLASS SSBN (TRIDENT)	7,509	100.0%
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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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