Attachment (A)_2370.2-7407V REV D for Solicitation.pdf

PDF 215 KB Posted Jul 1, 2026

Attached to: MTRA Disposal Box
Solicitation number: N4215826QE069
Issued by: Department of the Navy Naval Sea Systems Command

About this file

Written by GovTribe AI · Jul 1, 2026

This is a detailed engineering drawing set for an MTRA (Motor Tube Rotor Assembly) Disposal Box, produced by Norfolk Naval Shipyard for Reactor Servicing (C2370.2). The drawing package consists of 11 sheets and provides comprehensive fabrication specifications for a steel containment box designed to safely dispose of motor tube rotor assemblies.

The disposal box assembly comprises 15 piece components constructed primarily from mild steel, with specific components fabricated from ASTM A131/A131M Grade DH-36 steel. Key structural elements include four outer side plates (38" x 55" x 2"), inner and outer bottom plates (36" x 36" x 2" and 40" x 40" x 2" respectively), four inner side plates (35" x 114" x 1"), a top plate (36" x 36" x 1"), and divider plates. Hardware consists of sixteen 1/2"-13 studs (4" long), Grade 8 locknuts, and stainless steel washers. The assembly includes three padeyes for lifting, two forklift channels (one standard and one modified), and a rubber gasket (BUNA-N or Silicone, Durometer 20-40) for sealing. All dimensions are specified in inches with tolerances per ASME Y14.5M-1994. Fabrication requirements include welding per American Welding Society D1.1 standards, surface finishing to 250 RMS, interior rust-inhibitive priming with non-hazardous materials, and exterior bare metal finish. The drawing specifies that padeyes ship unattached, non-lock nuts pre-install on studs, and locking nuts ship separately. No cadmium materials or fasteners are permitted. The design was last revised in February 2026 with dimensional increases to certain plate components and minor corrections to dimensioning callouts.

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Other files

File	Type	Posted
Solicitation Amendment N4215826QE0690001 SF 30.pdf	PDF	Jul 7, 2026
CERTIFICATE OF COMPLIANCE.pdf	PDF	Jul 2, 2026
Solicitation N4215826QE069.pdf	PDF	Jul 1, 2026
FAR 52.212-2 Attachment - Technical Capabilities Form.pdf	PDF	Jul 1, 2026
FAR 52.212-1 Addendum.pdf	PDF	Jul 1, 2026
Attachment (B)_MTRA Disposal Box Supplemental Requirements for Solicitation.pdf	PDF	Jul 1, 2026

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A A

B B

C C

D D

SUPERVISOR

DECIMALS:

UP TO 24" = 1/8"

24" AND UP = 1/4"

Angles = 1 DEG

DRAWING DIMENSIONAL

AND GEOMETRIC

TOLERANCES

ARE PER ASME

Y14.5M-1994

UNLESS OTHERWISE SPECIFIED,

ALL DIMENSIONS ARE IN

INCHES, AND TOLERANCES ARE

AS FOLLOWS:

CHECKED BY

COGNIZANT ENGINEER

CONCURRENCE

CAGE CODE

TITLE

DWG NO

NORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE WITHOUT C2370 APPROVAL

SCALE

SIZE REV

SHEET 1 of 11 2370.2-7407V

MTRA Disposal Box

D Not to scale 81601

REVISION HISTORY

ZONE REV DESCRIPTION DATE DRAWN BY APPROVED BY

ALL OI ORIGINAL ISSUE 1/26/2018 A. FUENTES R. HABERKORN

SH 1, 7,

& 9 A

Modified dimensions for stud holes on PC 4, added threaded holes for top plate

4/17/2018 A. FUENTES R. HABERKORN

SH 1 & 2 B

Updated PC number for Note 9.

Corrected ASTM material ID.

4/18/2018 A. FUENTES R. HABERKORN

SH 1, 7 C

Added dimension for lift hole (PC 6);

corrected PC's 9 & 10 height

9/17/2018 A. FUENTES R. HABERKORN

SH 1-9, &

11 D

Increased length of PC's 4, 9, and 10.

Fixed minor dimensioning callouts.

2/10/2026 J. LEGGETT M. KUMAR

SHEET REVISION STATUS

SHEET 1 2 3 4 5 6 7 8 9 10 11

REVISION D D D D D D D D D OI D

PARTS LIST

PIECE NO. QTY DESCRIPTION SPECIFICATION

1 4 Outer Side Plate 38" x 55" x 2", Mild Steel

2 1 Inner-Bottom Plate 36" x 36" x 2", Mild Steel

3 1 Outer-Bottom Plate 40" x 40" x 2", Mild Steel

4 4 Inner Side Plate 35" x 114" x 1", Mild Steel

5 3 Padeye 3 1/2" x 6" x 1 3/4", ASTM A131/A131M or MIL-S-22698

GRADE

DH-36 Steel 6 1 Top Plate 36" x 36" x 1", Mild Steel

7 1 Modified Lift Channel 34" x 31" x 1/2", Mild Steel

8 1 Lift Channel 34" x 27" x 1/2", Mild Steel

9 1 Divider Plate 34" x 111" x 1/2", Mild Steel

10 2 Divider Plate 2 16 3/4" x 111" x 1/2", Mild Steel

11 1 Top Plate Gasket 36" x 36" x 1/4", Rubber, BUNA-N or Silicone, Durometer 20-40

12 16 Stud 1/2"-13, 4" Long

13 16 Locknut 1/2"-13, GRADE 8 Steel, MCMASTER-CARR P/N 90630A125

OR EQUIVALENT

14 16 Washer 0.531" ID, 1.25" OD, 18-8 Stainless

Steel, MCMASTER-CARR P/N 92141A033

OR EQUIVALENT

15 2 Forklift Spacer 2" x 4" x 17", Mild Steel N/A

JAKE LEGGETT (SOF) (C2370.2)

(757)396-1371 2/11/2026

ALYX DAVIDSON (SOF) (C2370.2)

(757)396-9669 2/12/2026

MOLLY KUMAR (SOF) (C2370.2)

(757)396-8081 2/27/2026

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 2 of 11

DRAWING NO. REV

FABRICATION NOTES

1. THIS DRAWING PROVIDES FABRICATION DETAILS FOR A MOTOR TUBE ROTOR ASSEMBLY DISPOSAL BOX.

2. BREAK ALL SHARP EDGES AND REMOVE ALL BURRS AND WELD SPLATTER. ALL OTHER SURFACES ARE TO BE

FINISHED TO 250 RMS UNLESS OTHERWISE NOTED.

3. WELDING REQUIREMENTS:

A. WELDING SHALL BE IN ACCORDANCE WITH AMERICAN WELDING SOCIETY D1.1.

B. WELD SIZED SHOWN ARE MINIMUM REQUIREMENTS.

C. SNIPE CORNERS IN THE WAY OF FILLETS AND EXISTING WELDS. CLOSE ALL SNIPES AT WELDING.

SEQUENCE THE WELDING OF MATERIALS AS NECESSARY TO MINIMIZE DISTORTION.

4. EACH CONTAINER SHALL HAVE A BUNA-N OR SILICONE RUBBER GASKET FOR SEALING TOP. GASKET SHALL

BE PROVIDED WITH A CURE DATE AND AT LEAST 85% OF SHELF LIFE REMAINING UPON SHIPMENT. SEE PC 11

FOR DETAILS.

5. NO CADMIUM IS TO BE USED ON BOX. DO NOT USE CADMIUM FASTENERS. STEEL FASTENERS SHALL HAVE

A BLACKENED, ZINC PLATED FINISH, OR NO FINISH.

6. ALL DIMENSIONS ARE IN INCHES UNLESS OTHERWISE SPECIFIED.

7. PAINTING REQUIREMENTS:

A. INTERIOR OF THE BOX WILL BE PRIMED WITH NON-HAZARDOUS, RUST INHIBITIVE PRIMER.

B. EXTERIOR WILL BE LEFT AS BARE METAL.

8. PADEYES SHALL BE SHIPPED UN-ATTACHED TO BOX.

9. BOX SHALL BE SHIPPED WITH NON-LOCK NUTS INSTALLED ON STUDS (PC 12). SHIP LOCKING NUTS (PC 13)

UNINSTALLED.

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 3 of 11

DRAWING NO. REV

MTRA Disposal Box - Top View

PC 7 (See Sheet 6)

PC 15

PC 2

PC 1

PC 9

PC 11PC 10

1/8"

1/8" PC 9 TO PC 4, TYP

1/8"

1/8" PC 10 TO PC 9, TYP

1/8"

1/8" PC 9 & PC 10 TO PC 2, TYP

DETAIL A

DETAIL B

DETAIL C

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 4 of 11

DRAWING NO. REV

MTRA Disposal Box - Side View w/Details

PCs 12, 13, & 14

SEE NOTE 9

PC 11

1/4" PC 1 to PC 4

1/4" PC 1 to PC 3 PC 4 to PC 2

PC 2

PC 3

1/4" PC 7 to PC 4 TYP

PC 15

1/4" PC 15 to PC 4 TYP

1/4" PC 8 to PC 1 TYP

PC 7

PC 4

PC 8

PC 1

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 5 of 11

DRAWING NO. REV

PC 5: Padeye

R13

3 1

56°

2 THRU

1 3

52°

TYP

250 6

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 6 of 11

DRAWING NO. REV

PC 7: Modified Forklift Channel PC 8: Forklift Channel

NOTE: PC 7 AND 8 MAY BE FABRICATED BY BENDING 1/2" PLATE OR WELDING TO FORM THE C CHANNEL.

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 7 of 11

DRAWING NO. REV

PC 6: Top Plate

4 7

7 4

2 THRU

16 Places

2 TYP

1/2-13 UNC - 2B 3

2 TYP

1/2-13 UNC - 2B 1 1

4 ± 1

TYP. 4 Places

2 TYP

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 8 of 11

DRAWING NO. REV

PC 11: Top Cover Gasket

2 THRU

16 Places

2 TYP

2 TYP1 TYP

7 TYP

14 TYP

22 TYP

29 TYP

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 9 of 11

DRAWING NO. REV

PC 4: Inner Side Plate

2 TYP

1/2-13 UNC - 2B 1 1

4 Places

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

OI 10 of 11

DRAWING NO. REV

PC 15: Forklift Spacer

A A

B B

C C

D D

2370.2-7407VMTRA Disposal Box

TITLENORFOLK NAVAL SHIPYARD

REACTOR SERVICING

C2370.2

NO DEVIATIONS SHALL BE MADE

WITHOUT C2370 APPROVAL

SHEET

D 11 of 11

DRAWING NO. REV

File details come from the government source that posted it. Updated Jul 1, 2026.