Drawing A327-1826-m31_prelim_20240429.pdf

PDF 2 MB Posted Aug 3, 2026

Attached to: Sources Sought Notice for a Model Support Replacement of the Unitary Plan Wind Tunnel
Solicitation number: 80ARC026SS0728
Issued by: National Aeronautics and Space Administration Ames Research Center

About this file

Written by GovTribe AI · Aug 3, 2026

This is a preliminary engineering drawing for an Intermediate Assembly of a Sting Body component used in the Unitary Plan Wind Tunnel at NASA Ames Research Center. The drawing is dated April 23, 2024, and is marked "NOT FOR FABRICATION," indicating it is in preliminary status with no initial or latest revision dates established.

The assembly (drawing number A 327-1826-M31, revision A.9) consists of multiple components including sting body test sections, covers (aft and mid), fasteners, and threadlocking compound. The sting body is manufactured from alloy steel with a minimum ultimate tensile strength of 130 KSI. The assembly includes detailed specifications for drilling, reaming, and tapping operations, with multiple hole patterns for fastening including 4X .6250-18UNF-2B holes, 8X .3750-24UNF-2B holes, and various through-wall cutouts. Critical dimensions are provided in inches with tolerances per ASME Y14.5-2009, including specific requirements for drilled hole tolerances, fractional dimensions, and angular measurements. The assembly accommodates two variants: a 9X7 sting body (Item 1, shown) and an 11X11 sting body (Item 2, not shown), with corresponding quantities of fasteners specified for each configuration. Detailed section views and cross-sections are provided to clarify the internal geometry and mounting interfaces for integration at the next assembly level.

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Drawing A327-1826-m54_prelim_20240429.pdf	PDF	Aug 3, 2026
Drawing A327-1826-m46_prelim_20240429.pdf	PDF	Aug 3, 2026
ATTACHMENT 1 - Draft Statement of Work.pdf	PDF	Aug 3, 2026
Drawing A327-1826-m35_prelim_20240429.pdf	PDF	Aug 3, 2026

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N A S A B O R D E R

8 7 6 5 4 3 2

1345678

NOTES: UNLESS OTHERWISE SPECIFIED

REV DESCRIPTION DATE APPROVAL

REVISIONS

Ames Research Center Moffett Field, California 94035-1000

SHEETSCALE INDEX DATE OF

DRAWINGDO NOT SCALE

INTERMEDIATE ASSEMBLY,

STING BODY, 11X11X

STING BODY, 11X11 TEST

SECTION

A327-1826-M33-2

ALLOY STEEL, 130 KSI

MIN UTS

SCREW, 82�$� FLATHEAD SOCKET,

ALLOY STEEL, 130 KSI

MIN UTS

SCREW, 82�$� FLATHEAD SOCKET,

06-2018J. KENNON

PARTS LIST

ITEM

NO.ZONE

MATERIAL SPECIFICATIONDESCRIPTION/NOMENCLATURE

PART OR

IDENTIFYING NO.

CAGE

CODEQTY REQ'D PER ASSY

SHEET-1-2

INTERMEDIATE ASSEMBLY,

STING BODY, 9X7

-1X1

2-21

STING BODY, 9X7 TEST

SECTION

A327-1826-M33-11

5COVER, AFTA327-1826-M62-111

6COVER, MIDA327-1826-M62-211

7-555

8-666

THREADLOCKING COMPOUND,

SERVICE REMOVABLE

LOCTITE:

APPLICATION

NEXT ASSEMBLYNO.

A327-1826-M28ALL

INTERMEDIATE ASSEMBLY &

DETAILS, STING BODY

STING MODEL SUPPORT

UNITARY PLAN WIND TUNNEL

1 4 3/8

327-1826-M3125307D

REVCAGE CODESIZE

DATEQ.A.

DATEMATERIAL

DATESTRESS

DATEDESIGNED

DATECHECKED

06-2018J. KENNON

DATEDRAWN

DATEREQUESTOR

DATESUPERVISOR

DATEPROJECT MGR

DATELATEST REVISION

DATEINITIAL RELEASE

DATEPRELIM. RELEASE

A.9327-1826-M31

WC REV:PRO/E DRAWING FILE NAME:

63ALL MACHINED

SURFACES TO BE

MAX.01BREAK SHARP CORNERS.XXXDIAMETER ON SAME

AXIS TOTAL RUN OUT

TOLERANCE

+.005-.001 +.010-.002 +.015-.002 +.030-.003 +.060-.005

DIAMETER

.000- .125 .126- .500 .501-1.000 1.001-2.000

OVER 2.000

1/32 0.1 0.03 0.005 0.5

FRACTIONAL �#�

.X �#�

.XX �#�

.XXX �#�

ANGULAR �#�

DRILLED HOLE TOLERANCESTOLERANCE UNLESS OTHERWISE SPECIFIED

UNLESS OTHERWISE SPECIFIED ALL DIMENSIONS ARE IN INCHES.

ALL DIMENSIONS AND TOLERANCES APPLY AFTER SURFACE TREATMENT.

-1A 327-1826-M31

REVSHEETDRAWING NUMBER

M O D E L

N A M E

M O D E L

T Y P

S S E M

M O D E L

R E V

D B

P r o j e c t s U n i t a r y

K n u c k l e S l e e v e D e s i g n s D r a w i n g s

DIMENSIONS AND TOLERANCES PER ASME Y14.5-2009.

"BN" IN PARTS LIST INDICATES TOTAL QUANTITY REQUIRED AT NEXT ASSEMBLY/ASSEMBLIES.

ISOMETRIC VIEW

REFERENCE ONLY

NO SCALE

SCALE 3/8

STING BODY DETAILS & ASSY

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

( )73.00

(�n� )15.50

P R E L I M

R E L

I N I T I A L

R E

A T E S T

R E

F A B

E S T I M A T

S A B O R D E R

SHEET

8 7 6 5 4 3 2

1345678

SCALE INDEX DATE OF

SIZE CAGE CODE

A -327-1826-M3125307D

REV

SEE SHEET ONE FOR REVISIONS

-2A 327-1826-M31

REVSHEETDRAWING NUMBER

2 4 1/8 ptc_wm_version327-1826-M31

WC REV:PRO/E DRAWING FILE NAME:

M O D E L

N A M

D E L

T Y P

S E M

M O D E L

R E

P R E L I M

R E

I N I T I A L

R E

A T E S T

R E

A B

E S T I M A T

D p t c w m l o c a t i o n

4X �n�.6250-18UNF-2B

EQ SP 90�$� APART

MATCH WITH -M39-2

(BLOCK)

2X �n�.7500 �x�1.00

NEAR & FAR SIDE

MATCH REAM AT ASSY

WITH -M39-2, HOUSING

FOR LIGHT PRESS FIT

WITH DOWEL PIN

4X �n�.25 THRU

NEAR WALL

1/4 NPT

CUTOUT

THRU WALL

NEAR &

FAR SIDES

6X THRU NEAR SIDE

6X THRU FAR SIDE

DRILL & REAM FOR TAPER PIN

4X NEARSIDE FARSIDE

MATCH WITH STRUTS AT INSTALLATION

DRILL & REAM FOR TAPER

4X NEARSIDE & FARSIDE

MATCH WITH STRUTS AT

INSTALLATION

6X THRU NEAR SIDE

6X THRU FAR SIDE

SEE DETAIL A

4X -18UNC-2B

1.00 MIN FULL THREAD

AT NEXT ASSEMBLY 8X -20UNF-2B

.63 MIN FULL THREAD

AT NEXT ASSEMBLY

DETAIL A

ANNULAR GROOVE

4 PLACES

SCALE 1/1

R.13

TRUE

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

1 INTERMEDIATE ASSY, STING BODY, 9X7 (SHOWN)

4 ITEM 1 - SHOWN

8 6X

9 AR

2 INTERMEDIATE ASSY, STING BODY, 11X11 (NOT SHOWN)

5 ITEM 2 - NOT SHOWN

7 5X

9 AR

7.1250

NEAR & FARE SIDE

5.6250 +.0200 -.0000

7.500

5.000

1.500

2.500

2 EQ SP@ 2.938

5.875

1.469 2.938

10.50010.500

7.500

2 EQ SP@ 2.938

5.875

1.469 2.938

NEAR & FAR SIDE

4.500

45�$�

THRU WALL

NEAR & FAR SIDE

2 HOLES IN LINE

.250

THRU WALL

NEAR & FAR SIDE

2 HOLES IN LINE

.75

THRU WALL

NEAR & FAR SIDE

2 HOLES IN LINE

.75

1.14

THRU WALL

MIRROR OPP SIDE

.75

70�$�

( )5.500

4.38

2.63

5.25

2.09

4.19

1.13

6X R.06

R 5.924 5.904

( ).25

.25

.13

TRUE

S A B O R D E R

SHEET

8 7 6 5 4 3 2

1345678

SCALE INDEX DATE OF

SIZE CAGE CODE

A -327-1826-M3125307D

REV

SEE SHEET ONE FOR REVISIONS

-3A 327-1826-M31

REVSHEETDRAWING NUMBER

3 4 1/8 ptc_wm_version327-1826-M31

WC REV:PRO/E DRAWING FILE NAME:

M O D E L

N A M

D E L

T Y P

S E M

M O D E L

R E

P R E L I M

R E

I N I T I A L

R E

A T E S T

R E

A B

E S T I M A T p t c w m l o c a t i o n

SCALE 1/4

SECTION B-B

SCALE 3/8

.03 X 45�$�

BOTH SIDES

SECTION C-C

SCALE 3/8

SECTION D-D

SCALE 3/8

SECTION E-E

SCALE 3/8

5X �n�.2500-28UNF-2B

TO MATCH ITEM 4, COVER

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

A7 4

A2 4 REF

(�n� ).250

(�n� )2.500

( )7.125

(�n� ).750

( )7.125

16�$�

21�$� 21�$�

16�$�

21�$�

3.6250

4.392

( )7.500

( )2.000

6.3�$�

3�$� POCKET

(87.5�$� COVER)

87.8�$�

.250

S A B O R D E R

SHEET

8 7 6 5 4 3 2

1345678

SCALE INDEX DATE OF

SIZE CAGE CODE

A -327-1826-M3125307D

REV

SEE SHEET ONE FOR REVISIONS

-4A 327-1826-M31

REVSHEETDRAWING NUMBER

4 4 1/8

A.9327-1826-M31

WC REV:PRO/E DRAWING FILE NAME:

M O D E L

N A M

D E L

T Y P

S E M

M O D E L

R E

P R E L I M

R E

I N I T I A L

R E

A T E S T

R E

A B

E S T I M A T

P r o j e c t s U n i t a r y

K n u c k l e S l e e v e D e s i g n s D r a w i n g s

SECTION E1-E1

SCALE 3/8

SECTION F-F

SCALE 3/8

SECTION G-G

SCALE 3/8

SECTION H-H

SCALE 3/8

SECTION K-K

SCALE 3/8

12X �n�.3750-24UNF-2B

EQ SP 30�$� APART

ON A �n�13.375 BC

SECTION J-J

SCALE 3/8

10X �n�.3750-24UNF-2B

4 REF

5 5X, REF

3 REF

6 6X, REF

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

( )3�$� ( )6.3�$�

21�$�

21�$� 21�$�

21�$�

THRU

ONE WALL

2.50

2.98

( �x�POCKET).250

81�$�

60�$�

63.3�$�

3.3�$�

63.3�$�

60�$�

.250

5.7505.750

30�$� 2X 3.46

30�$�

( )4.80

40�$�

4 EQ SP @ 25�$�

= 100�$�

40�$�

4 EQ SP

@ 25�$� = 100�$�

15�$�

Sheet 1

Views

new_view_1

new_view_2

Sheet 2

Views

new_view_4

bottom_5

Sheet 3

Views

new_view_7

new_view_8

new_view_9

new_view_10

new_view_11

Sheet 4

Views

new_view_12

new_view_13

new_view_14

new_view_15

new_view_17

new_view_18

File details come from the government source that posted it. Updated Aug 3, 2026.