Level 1 / Subsafe Parts

(Page 13) End item NSN parts page 13 of 16
Part Number
NSN
NIIN
2536-5 PIECE Gasket
010951204
2536-5-7 Gasket
010951204
255573PC20 O-ring
011971393
255574PC20 O-ring
011971393
255590PC37 Thrust Washer Bearing
003107401
255751PC19 Thrust Washer Bearing
010757220
255753PC19 Thrust Washer Bearing
010757220
256202 PIECE 21 Packing Retainer
010714634
25J489P44 Thrust Ball Bearing
001561889
25Z259D35 Tapered Roller Bearing
001005498
26052 Washer
011897212
2620-902 Valve Seat
011053572
2620-902 PC4 Valve Seat
011053572
2620-921X2PC19,20,21,23,24,25,2- Steam Trap Parts Kit
009567907
2620-925X3 PIECE 5 Machine Thread Bushing
013422604
2635-115-01-27 Nonmetallic Rod
013168429
Page: 13

Level 1 / Subsafe

Picture of Level 1 / Subsafe

SUBSAFE is a quality assurance program of the United States Navy designed to maintain the safety of the nuclear submarine fleet; specifically, to provide maximum reasonable assurance that subs' hulls will stay watertight, and that they can recover from unanticipated flooding.

SUBSAFE covers all systems exposed to sea pressure or critical to flooding recovery. All work done and all materials used on those systems are tightly controlled to ensure the material used in their assembly as well as the methods of assembly, maintenance, and testing are correct. They require certification with traceable quality evidence which track the item from the point of manufacture (including all records of the creation of the product, i.e. source materials as well as smelting and hardening process for metals) to the point of installation within a SUBSAFE boundary. These measures increase the cost of submarine construction and maintenance.

SUBSAFE addresses only flooding; mission assurance is not a concern, simply a side benefit. Other safety programs and organizations regulate such things as fire safety, weapons systems safety, and nuclear reactor systems safety.

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