Level 1 / Subsafe Parts

(Page 14) End item NSN parts page 14 of 16
Part Number
NSN
NIIN
2640-067PC6 AYK Sound Isolation Insert Set
010806399
2640-067PC6ASSY Sound Isolation Insert Set
010806399
2640-341X1 PIECE 9TITM Retaining Ring
011744334
2640-354X3 PIECE 6 Machine Thread Bushing
012134674
2640-355X3PC14 Thrust Washer Bearing
001056828
2640-357X3 PIECE 38 Plate Spacer
012077657
2640-357X3PC39 Thrust Washer Bearing
001056832
2640-357X3PC60 Ball Valve Washer
001362023
2640-372X3 PIECE 12 Plate Spacer
011457704
2640-389K2 PIECE 6 Sleeve Spacer
012101751
2640-389X2 PIECE 6 Sleeve Spacer
012101751
2640-390X3 PIECE 23 Plate Spacer
012303437
2640-405X3 PC9 Thrust Washer Bearing
010757220
2640-666XL PIECE 3 Externally Threaded Ring
011379307
2640-674X1 PIECE NO. 21 Packing Retainer
010714634
2640-674X1 PIECE NO. 21CP Packing Retainer
010714634
2640-682-06 ITEM 45 Plate Spacer
011430037
2640-808X1PC31 Thrust Washer Bearing
001133802
011410347
Page: 14

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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