NDBC Response Attachment 3_ATHULL2.0-N1002.pdf
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- Solicitation number
- 142082-26-0206
About this file
This document is an engineering drawing for a 2.54 Meter Buoy Frameworks Assembly (Drawing Number ATHULL2.0-N1002, Revision 0) produced by the National Data Buoy Center at the John C. Stennis Space Center in Mississippi. The drawing provides detailed technical specifications and assembly instructions for the buoy framework structure, which serves as the foundation for data collection buoy systems.
The assembly consists of 20 component parts organized in a hierarchical bill of materials, including two primary weldment structures (a hull insert and lid), a hull bottom retainer, hardware assemblies, fasteners, and various support components. Key materials specified include 316 stainless steel for corrosion resistance in marine environments, with components sourced from both the National Data Buoy Center (NDBC) and commercial vendors such as McMaster-Carr. The fastening hardware includes cap screws, hex locknuts with nylon inserts, flat washers, and threaded rods in .75-inch and .375-inch sizes. The drawing includes multiple views (exploded views at 1:7 scale, isometric views at 1:10 scale, and detailed sections) with dimensional tolerances specified as ±0.05 inches for decimals and ±0.5 degrees for angles. The framework incorporates a hatch dog bolt assembly system, cable pass-through provisions, and gasket sealing components, indicating design for weatherproof operation in open ocean conditions. Sheet 1 of 2 presents the primary assembly overview, while Sheet 2 provides additional exploded and detailed views for manufacturing and assembly reference.
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Text version
EXPLODED VIEW #1
SCALE 1 : 7
DETAIL A
SCALE 0.29 : 1
ISOMETRIC VIEW
SCALE 1 : 10
20 ATHULL2.0-F2003 2.54 M HULL INSERT WELDMENT 1
19 ATHULL2.0-N2004 2.54 M LID WELDMENT 1
18 ATHULL2.0-F2002 HULL BOTTOM RETAINER WELDMENT NDBC1
17 96545A468 ROD, METAL, .75" x 10 UNC, 48" LG., ALL THREAD, 316 SST McMaster-Carr3
16 HURRHULL-F2021 BUOY BOTTOM RETAINER FLANGE NDBC6
15 HURRHULL-F2018 THREADED TAB ISOLATOR NDBC9
14 HURRHULL-F2019 THREADED TAB NDBC9
13 NDBC-9209 HATCH DOG BOLT ASSEMBLY NDBC6
12 ATHULL2.0-N2006 CABLE PASS THROUGH GASKET 1
11 ATHULL2.0-N2005 CABLE PASS THROUGH CAP 1
10 ATHULL2.0-N2007 2.54M LID GASKET NDBC1
9 14558WASHER, SHOULDER, .75" SCREW SIZE, .78" ID, .92" SHOULDER OD, 2.00" OVERALL DIA., .13" THICK
WASHER, .63" LG., DELRIN
8 91500A19716200SCREW, FLAT HEAD, MACHINE, PHILLIPS, #8-32 UNC x .75" LG., FULL THREAD, 316 SST McMASTER-CARR18
7 48335K15518689PIPE FITTING, High-Strength White Nylon Threaded Pipe Fitting, .75 Pipe Size, Hex Plug .ipt MCMASTER1
6 92186A84818759SCREW, CAP, HEX HEAD, .75" 10 UNC x 3.25" LG., PARTIAL THREAD, 316 SST McMASTER-CARR6
5 90715A1452702NUT, NYLON-INSERT, HEX LOCKNUT, .375"-16 THREAD SIZE, .5625" WIDTH, .4531" HEIGHT, 316 SST McMASTER-CARR6
4 663WASHER, FLAT, .375" SCREW SIZE, .4063" ID, .8125" OD, .05" THK, 316 SST 12
3 90715A0366920NUT, NYLON-INSERT HEX LOCKNUT, .75"-10 THREAD SIZE, 1.0625" WIDTH, .875" HEIGHT, 316 SST McMASTER-CARR12
2 92186A630708SCREW, CAP, HEX HEAD, .375" 16 UNC x 1.75" LG., PARTIAL THREAD, 316 SST McMASTER-CARR6
1 731WASHER, FLAT, .75" SCREW SIZE, .8125" ID, 2.00" OD, .148" THK, 316 SST
PARTS LIST
ITEMZONEPART/SPEC. NO.NDBC CONT. NO.DESCRIPTIONNOTESVENDORQTY.
A
A A
B B
C C
D D
D R A W
I N
G
S T A T E
SHEET 1 OF 2
APPROVED
CHRIS BROWN
DWG NO
ATHULL2.0-N1002
TITLE
2.54 M BUOY FRAMEWORKS ASSEMBLY
SIZE
D
REV
NATIONAL DATA BUOY CENTER
John C. Stennis Space Center
Stennis Space Center, Mississippi 39529
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES
TOLERANCES
DECIMALS ANGULAR
.XX +/- .05 +/- .5
.XXX +/-.010 .
DO NOT SCALE DRAWING
APPLICATION
-NO. HULL NO. NEXT ASSY. USED ON
NDBC PROJ. ENGINEER
NTSC ENGINEER
CHECKED
DRAWN
APPROVALS DATE
CONTRACT NO.
CHAIR, ENGINEERING REVIEW BOARD
CHANGE ORDER #
SCALE
DRAWING LEVEL
* = VENDOR REQUIRED OTHERWISE VENDOR SUGGESTED.
REVISION HISTORY
ZONE REV DESCRIPTION DATE APPROVED
2x
6 REQ'D
2x
2x
6 REQ'D
6x
3x
3x
3x
3x
3x
3x
3x
2x
EXPLODED VIEW #2
SCALE 1 : 7
DETAIL B
SCALE 1 : 1
B
A A
B B
C C
D D
D R A W
I N
G
S T A T E
SHEET 2 OF 2
DWG NO
ATHULL2.0-N1002
SIZE
D
REV
SCALE
18x
9x
9x
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