Drawing A327-1826-m35_prelim_20240429.pdf

PDF 769 KB 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 a Sting Adapter component (Drawing Number A 327-1826-M35, Revision A.14) for the Unitary Plan Wind Tunnel at NASA's Ames Research Center in Moffett Field, California. The drawing is dated April 23, 2024, and is marked "NOT FOR FABRICATION," indicating it is in preliminary status and not yet approved for production use.

The Sting Adapter is fabricated from ASTM A668 Class M steel with a specified ultimate tensile strength of 125 KSI minimum and hardness of Rc 25 minimum. The component has an estimated weight of 120 pounds and features a tapered design with an approximate 1.000 inch-per-foot taper to match a NASA-furnished gage with 80% minimum contact. The part includes multiple dimensional specifications, machined surfaces with specific tolerances per ASME Y14.5-2009, four equally-spaced slots, six threaded holes (0.2500-20 UNC) on a bolt circle, and provisions for press/shrink fits with bearing races (A327-1826-M47-17 and A327-1826-M47-18) with .001-.002 tolerance. The drawing contains detailed engineering views including isometric representations, section views, and cross-sectional details with comprehensive dimensional annotations for manufacturing purposes. The component interfaces with related assemblies including A327-1826-M36-1, A327-1826-M37-1 (Cover), and A327-1826-M26-1.

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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-m31_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

6/18J. KENNON

PARTS LIST

ITEM

NO.ZONE

MATERIAL SPECIFICATIONDESCRIPTION/NOMENCLATURE

PART OR

IDENTIFYING NO.

CAGE

CODEQTY REQ'D PER ASSY

SHEETBN

ASTM A668 CLASS M, 125

KSI/Rc 25 MIN FINAL

STING ADAPTER-11

APPLICATION

NEXT ASSEMBLYNO.

A327-1826-M34-1

DETAILS, STING ADAPTER

STING MODEL SUPPORT

UNITARY PLAN WIND TUNNEL

1 4 1/2

327-1826-M3525307D

REVCAGE CODESIZE

DATEQ.A.

DATEMATERIAL

DATESTRESS

DATEDESIGNED

DATECHECKED

6/18J. KENNON

DATEDRAWN

DATEREQUESTOR

DATESUPERVISOR

DATEPROJECT MGR

DATELATEST REVISION

DATEINITIAL RELEASE

DATEPRELIM. RELEASE

A.14327-1826-M35

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-M35

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

1 FOR .001-.002 PRESS/SHRINK FIT WITH A327-1826-M47-17

BEARING RACE

2 FOR .001-.002 PRESS/SHRINK FIT WITH A327-1826-M47-18

BEARING RACE

DIMENSIONS AND TOLERANCES PER ASME Y14.5-2009.

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

AFTER ROUGH MACHINING, HEAT TREAT TO OBTAIN:

- ULTIMATE TENSILE STRENGTH OF 125 KSI MIN

- Rc 25 HARDNESS

FOR .001-.002 PRESS/SHRINK FIT WITH A327-1826-M47-17 (BEARING RACE).

FOR .001-.002 PRESS/SHRINK FIT WITH A327-1826-M47-18 (BEARING RACE).

ISOMETRIC VIEW

REFERENCE ONLY

NO SCALE

AIN

DIR

ECT

ION

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

ESTIMATED

WEIGHT: 120 LBS.

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

-327-1826-M3525307D

REV

SEE SHEET ONE FOR REVISIONS

-2A 327-1826-M35

REVSHEETDRAWING NUMBER

2 4 1/2

A.14327-1826-M35

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 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

.38 X 45�$�

6X �n�.2500-20UNC-2B THRU

EQ SP 60�$� APART ON BC

4X R

1 STING ADAPTER

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

11.000

11.438

12.625 12.622

12.000

10.750

13.902 13.897

7.2548

8.312 8.307

1.000 IN/FT TAPER

TO MATCH GAGE FURNISHED BY NASA

WITH 80% MINIMUM CONTACT

12.6849

( )7.00

19.906

3.969

R1.25

30�$�

45�$�

12.375

4X SLOT

EQ SP 90�$� APART

.688

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-M3525307D

REV

SEE SHEET ONE FOR REVISIONS

-3A 327-1826-M35

REVSHEETDRAWING NUMBER

3 4 1/1

A.14327-1826-M35

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 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 A-A

HIDDEN LINES REMOVED

FOR CLARITY

2X .03 X 45�$�

.06 X 45�$�

GRAIN DIRECTION

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

6.5518 +.0005 -.0005

7.2180 +.0005 -.0005

3.479

.500

CYL SURFACE

4.150

TO INTERSECTION

5.125

6.982

.06

INTERSECTION

2.77

10.000

R2.00

6.406

4.625

R.125

2.438.344 .376

.249

R.25

R.13

R.03

2X R.03

(R )1.25

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-M3525307D

REV

SEE SHEET ONE FOR REVISIONS

-4A 327-1826-M35

REVSHEETDRAWING NUMBER

4 4 1/2

A.14327-1826-M35

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 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 B-B

8X �n�.6250-18UNF-2B THRU

TO MATCH A327-1826-M36-1 AT ASSY

SECTION D-D

8X �n�.2500-28UNF-2B

NORMAL TO LOCAL SURFACE

TO MATCH A327-1826-M37-1

(COVER)

SYM

PRELIMINARY DRAWING

DATE: 2024-04-23

NOT FOR FABRICATION

2X �n� MATCH REAM

WITH -M26-1 AT ASSY

FOR LIGHT PRESS FIT

WITH DOWEL PIN

.7500

10�$�

60�$�

10�$�

60�$�

5�$� 60�$�

60�$�

5�$�

Sheet 1

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Sheet 2

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Sheet 3

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Sheet 4

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