Defense Program Sustainment Analysis

Obsolescence Risk and Impact

SSBN-726 Ohio Class Ballistic Missile Submarine

Updated March 2024

13,178

Parts with Declining Procurement

1,886

Manufacturers with Declining Procurement

108,363

Obsolete Parts

27,589

Sole Sourced Parts

Obsolescence Risk and Impact: SSBN-726 Ohio Class

Ark.ai conducted a sustainment program analysis of the SSBN-726 Ohio 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-726 Ohio 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 SSBN-726 Ohio Class program resulted in the following statistics. There are 13,178 Parts with Declining Procurement and 1,886 Manufacturers with Declining Procurement. The count of Obsolete Parts is 108,363 and the SSBN-726 Ohio Class program is dependent on 27,589 Sole Sourced Parts.

Information about the critical vendors for the SSBN-726 Ohio Class program, as well as a list of the obsolete and sole sourced parts, can be found 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	9,092	$5,311,896	$2,191.00
Rockwell Collins, Inc.	1,647	$2	$1
Northrop Grumman Corporation	1,341	$786,541	$2,476.81
L3 Technologies, Inc.	1,231	$1,882,146	$4,467.13
Fairbanks Morse, LLC	955	$518,654	$5,692

Top Sole Sourced NiiNs

NiiN	Description	Unit Price	Vendor Name
014875108	VALVE,SAFETY RELIEF	$237,715	VACCO IND
011456718	DRAIN UNIT,WASTE	$211,026	NORTHROP GRUMMAN SYSTM CORP
011349639	FLUSHING AND SNUBBE	$183,735	ALLARD NAZARIAN GRP INC
016994066	GUARD RAIL SECTION,UTILITY	$146,650	GK MECHANICAL SYSTM LLC
016996849	GUARD RAIL SECTION,UTILITY	$141,150	GK MECHANICAL SYSTM LLC

Top Obsolete NiiNs

NiiN	Description	WSDC Count	Authorized Suppliers
009338120	WASHER,LOCK	3	36
009296395	WASHER,LOCK	3	38
009338121	WASHER,LOCK	3	23
009338118	WASHER,LOCK	3	34
009338119	WASHER,LOCK	3	21

Top Weapon System Designator Codes

WSDC	Name	NiiN Count	Percent of Total NiiNs
23N	OHIO CLASS SSBN (TRIDENT)	62,956	94.7%
ZKN	SSGN CLASS SUBMARINE	10,281	15.5%
Z4N	726 CLASS SUBMARINE INTEGRATED CONTROL AND ALARM SYSTEM	3,123	4.7%
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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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EXPLORE ADDITIONAL ANALYSES

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