38DJA52101R_00_A01.pdf

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Firemain Discharge Piping
Solicitation number
N6264926Q0471
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This is a Job Specification for shipboard repair work on the USS TRIPOLI (LHA-7), a naval vessel. The specification details the replacement of firemain discharge piping for the No. 13 fire pump located in the Fire Pump Room (5 1/2-97-01-E). The work involves removing and installing approximately 10 feet of one-inch IPS (Iron Pipe Size) firemain discharge piping constructed of copper-nickel (CuNi) with CuNi and bronze fittings, located between the one-inch IPS boss outlet piping on the five-inch IPS discharge piping and check valve FM-V-2161, excluding the boss and check valve outlet side union. The anticipated award date is July 24, 2026, with a period of performance from August 17, 2026 to November 30, 2026, and production completion targeted for October 2, 2026. The preparing activity is SASEBO.

The specification requires accomplishment of multiple technical standards and testing procedures, including pre-work briefs with contractor, government, and ship's force personnel to confirm task understanding and flood-prevention measures. Primary requirements include removal and installation of the piping per referenced drawings and standards (MIL-STD-1627 Rev C for pipe bending), cleaning and reuse of existing orifices and fasteners, hydrostatic testing at 296 (+6/-0) PSIG for welded and brazed joints, witness of operating pressure tests with zero allowable leakage, and surface cleaning and preservation to match surrounding areas. The Government Furnished Material list includes 31 line items encompassing pipe, valves, strainers, flanges, unions, O-rings, gaskets, elbows, sheet materials, welding and brazing supplies, fasteners, and pipe coverings. The specification is prepared by T. Yoshinaga, approved by S. Murakami, and concurred by T. Takamasu, with SRF Control No. 1301389144.

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Ship/HULL NO. Ship/HULL NAME ICN: ReKeyOp:

LHA -7 USS TRIPOLI

JON. 38DJA52101 AOl

TITLE:

Firemain Discharge Piping for No.13 Fire Pump; replace

JOB SPECIFICATION

Anticipated Award Date: Production Completion Date: PREPARING ACTIVITY:

SASEBOPOP Start Date: POP End Date:

PREPARED BY:

T.YOSHINAGA

CODE

P_YO

DATE

12/8/2025

APPROVED BY:

S.MURAKAMI

I".A/t CODE S225

CONCURRED BY:

T.TAKAMASU

____1o CODE S234

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

ASSIST PLANNER'S NAME: CODE

DVNG OPS

DESCRIPTION:

JSN(S): ERO4-1594 CASREP #

S/F CONTACT: TILLMAN DCCS I 3MC CWP # CCNS #

Approved by S3001S900

D. PERKINS

Jct,Min$kc"

/" Date:/Z,/2/O2( . AvI: 6A1

LWC:

Work Completed

S/Force:

SHIPSUPT:

Rate: Date:

Date: SRF CONTROL NO.:

WORK CERTIFICATION SIGNATURES

COMPLETION OF WORK REVIEW: BADGE NO.: SHOP/CODE: PHONE DATE:

Sakura.Yamaguchi.ja Typewritten Text R

Sakura.Yamaguchi.ja Typewritten Text 7/24/2026

Sakura.Yamaguchi.ja Typewritten Text 8/17/2026

Sakura.Yamaguchi.ja Typewritten Text 10/2/2026

Sakura.Yamaguchi.ja Typewritten Text 11/30/2026

Sakura.Yamaguchi.ja Typewritten Text 1301389144

Ship/HULL NO. Ship/HULL NAME ICN: Rev: Key Op:

LHA-7 USS TRIPOLI

JON. 380JA52101 AOl

TITLE:

Firemain Discharge Piping for No.13 Fire Pump; replace

1. SCOPE:

1.1 Title: Firemain Discharge Piping for No.13 Fire Pump; replace

1.2 Location of Work:

1.2.1 Fire Pump Room (5 l/2 -97-01-E)

1.3 Identification:

1.3.1 Quantity (One EA), One Inch IPS Firemain Discharge Piping for No.13 Fire Pump Located in 1.2.1, between One Inch IFS Boss Outlet Piping on 5 Inch IPS Discharge Piping and check valve (FM-V-2161), Not Including Boss and Check Valve (FM-V-2161) Outlet Side Union, Approximately 10 Feet Length, CuNi Piping, CuNi and Bronze Fittings, See ENCLOSURE (A)

2. REFERENCES:

2.1 Standard Items (FY26)

2.2 521-7566289 Rev E, Firemain Piping System Diagram

2.3 521-7565100 Rev A, Piping Firemain SYS AFT Fire Pump Room

2.4 t'iIL-STD-l627 Rev C, Bending of Pipe or Tube for Ship Piping Systems

3. REQUIREMENTS:

CV) (G) "PRE-BRIEF"

3.1 Prior to the start of work, attend Pre-Brief to confirm that the Contractor, the Government, and the Ship's Force understand the tasks the contractor is required to accomplish as part of this job specification and that each of the parties understand the precautionary measures to be taken to prevent flooding while the repairs/alterations are in progress and who has responsibility for such measures. -SHIPSUPT

NOTE: Opening Item 75 and 79 of LHA-7 Docking Drawing (DWG.801-8502725) for piping listed in 1.3.1

3.2 Remove existing and install new firemain discharge piping to replace the firemain discharge piping listed in 1.3.1, using 2.2 and 2.3 for guidance.

3.2.1 Clean each existing orifice and fastener for reuse.

3.2.2 Accomplish the requirements of Paragraphs 4 and 5 of 2.4 for pipe bending section.

Sakura.Yamaguchi.ja

R

Ship/HULL NO.

LHA-7

TITLE:

Ship/HULL NAME ICN: Rev: Key Op:

USS TRIPOLI

JON: 38DJA52101 AOl

Firemain Discharge Piping for No.13 Fire Pump; replace

3.2.3 Accomplish the requirements of 009-12 of 2.1, including Table One Columns A and B, Lines One through 10.

3.2.4 Accomplish the requirements of 009-71 of 2.1 for hydrostatic test, using clean, fresh water at 296 (+61-0) PSIG, for each welded joint and each brazed joint of new and disturbed piping.

(V) (G) "OPERATING PRESSURE TEST"

3.2.5 Witness an operating pressure test of new and disturbed piping to be conducted by ship's force to verify tightness of each mechanical joint affected by this work item, until the specified criteria is verified.

Allowable leakage: None. - S130

3.2.5.1 Prior to an operating pressure test, contact SHIPSUPT to ensure that each underwater hull opening is cleared by SRF Diver.

3.3 Accomplish the requirements of 009-11 of 2.1 affected by this work item.

3.4 Accomplish the requirements of 009-32 of 2.1 for cleaning and preservation of each new and disturbed surface to match surrounding areas.

4. NOTES:

4.1 Initial Condition - Firemain Discharge Piping for No.13 fire pump is degraded.

4.2 The cofferdam (at Opening Item No.75 and 79 of LHA-7 Docking Drawing (801-8502725)) will be installed and removed by SRF Diver.

4.3 SRF tool room will issue pressure gauges.

5. GOVERNMENT FURNISHED MATERIAL:

5.1 SRF will provide following material.

MATERIAL LIST

M

QTY

ITEM PC REF I STOCK HAZ DOC REQDI PARA

NO. NO NO C DESCRIPTION NUMBER MA1 NO. UNIT NO.

001 M PIPE,1"IPS,1.315"ODXo.082'wr,MIL -T- 9B4730 N 20/FT 3.2

16420 TY-I SPECIAL, CNA 90/10 SAPTEO2O5

002 M VALVE, lIPS, GATE, STOP, UE, 400#, 3B 4820 N

1/EA

3.2

803-1 385714-51AF, BRONZE 015502905

003 M Y-STRAINERASSY, 803-841499 ASSY 96, 9B 4730 N

1/EA

3.2

STRAINER MESH 0.062D1A, SIL-BRAZE 013350412

ENDS

004 M VALVE, 1"IPS, SWING CHECK, UE, 400#,

3B 4820 N

1/EA

3.2

803-1385721-5, BRONZE 013477747

005 M FLANGE, lIPS, NAVY, SB, 250#, MIL-F- 9B4730 N

4IEA

3.2

20042, BRONZE 005413192

Sakura.Yamaguchi.ja

LHA-7 USS TRIPOLI 38DJA521 01 AOl

TITLE:

Firemain Discharge Piping for No.13 Fire Pump; replace

MATERIAL LIST

M

QTY

ITEM PC REF I STOCK HAZ DOC REQD/ PARA

NO. NO. NO. C DESCRIPTION NUMBER MA1 NO. UNIT NO.

006 C UNION, lIPS, SB, 400#, MIL-F-1183/10- 9B 4730 N 4/EA 3.2

14-A34, BRONZE 005425192

007 M 0-RING, 0.103"WX l.549"ID (MEAN), MIL- 9B5331 N

5/EA

3.2 R-83248/1 -129 001675117

008 M 1" UNION GASKET, METALLIC & 985330 N

4/EA

3.2

RUBBER, MIL-G-24748 TY.A, RETAINER 013596970

AND 0-RING,

009 M RUBBER SHEET, 118" X 36" X NA, HH -P-

9B 5330 N

1/SY

3.2

151, CL.1, COMMERCIAL 003330313

010 C ELBOW, lIPS, 90 DEG, SR, SB, 400#, 9B4730 N

3/EA

3.2

MIL-F-1183/5-05, BRONZE 005425144

011 C SHEET/PLATE, MONEL (QQ-N-281), 36" 9B 9535 N

6/SF

WIDTH X 24" LENGTH, TOTAL 6 SF, 1/8" 014651103

THK, FOR ORIFICE

012 M WELDING ELECTRODE, 1/16" X 36", MIL-

9B 3439 Y

5339B103

1/BX

3.2

RN67, MIL-E-21562, CL.2, GTAW 000888988

013 M BRAZINGALLOY, 1/8"XO.050"X20", 983439 Y

5339EX01

1/LB

3.2 GRIll, STRIP, BCUP-5, QQ-B-654, 28 005288578

ENLB

014 M BRAZING, 0-F-499 TYPE B, GRIll & IV, 16

9B 3439 Y

5339EX02

1/JR

3.2

OZ/JR 009148390

015 C HEXAGON I-I, BOLT, HEX, 1I2"-13UNC-2A 9B 5305 N

10/El

3.2

X 2-3/4"LG X 1 -1/4"THD, MS35311 -1 18, 002269195

MONEL

016 C NUT, PLAIN, HEX, 1/2"-13UNC-2B, MIL-S-

985310 N

10/El

3.2

1222 TY.!, STY.A OR B, MONEL 002725700

017 C BOSS 1"IPS,SWBASEXSWOUTLET, 9C4730 N

1/EA

3.2

SP485064-0705, CUNI7O/30 SAPYOO112

018 M PIPE COVERING, lIPS, 1-3/8" lDX3I4" 9Q5640 N

3/EA

3.3

THK X 6FT LG, 6FT/EA SA4783096

019 M PIPE COVERING, 5"IPS, 5-1/2" IDX3/4" 9Q5640 N

1IBX

3.3

THKX 6 FT LG, 6FT/EA, U/I:2EAIBX 5A9607849

020 M PIPE COVERING, 6"IPS, 6-5/8" ID X 3/4" 9Q 5640 N

1/BX

3.3

THKX 6FT LG, 6FTIEA, U/I:2ENBX SA9607850

021 M SHEET, 3I4"THKX 3FT WX 4FT L, K-FLEX 9Q 5640 N

4ISH

3.3

ECO, NON HALOGEN RUBBER FOAM, SA9607854

UII:8SH/BX

022 M GLASS CLOTH, 5 FT WX 50 YD, MIL-C-

9B 8305 N

1/RO

3.3

20079H TY.I, CL.3, L/W 001487363

023 M ADHESIVE, WHITE, MIL-DTL-3316D CL.1, 9B 8040 Y

5339EX04

1/GL

3.3

GR.A IGLJUI 002738708

024 M ADHESIVE, NEOPRENE, MIL-A-24179A 988040 Y

5339EX03

1/GL

3.3

TY.II, CL.1, 520, R-373, 1 GL/UI 005508835

025 C BOLT, 5/8-11 UNC2A-3.SLG, K-MONEL 9B 5306 N

4/EA

3.2

013342812

026 C NUT, 5/8"-11UNC-2B, PLAIN, HEAVY HEX, 9Z 5310 N

4IEA

3.2 MIL-DTL-1222, TYPE-Ill, K-MONEL 5A4578532

027 C BOLT, MONEL, 5/8-11 UNC-2A X 3-1/2"L, 9B 5305 N

8/EA

3.2

MONEL 002269211

028 C NUT, PLAIN, HEX, 5/8"-11UNC-2B, MIL-S- 9B 5310 N

BIEA

3.2

1222 TY.I, STY.A OR B, MONEL 002725701

029 M UNION, 1/4"IPS, 803-4384536-1XX-31, MIL- 9B 4820 N

2/EA

3.2

F-1183, BRONZE 011524768

030 M 0-RING, 0.070"WX 0.676"ID (MEAN), MIL- 95 5331 N

2IEA

3.2

R-83248/1-017, VITON 001660993

031 C COUPLING, 1 "IPS, SW, 400#, 803- 9B 4730 N

2fE

3.2

6397430, CNA7OI3O 014214718

Sakura.Yamaguchi.ja

LHA -7 USS TRIPOLI

JON. 38DJA52101 AOl

TITLE:

Firemain Discharge Piping for No.13 Fire Pump; replace

ENCLOSURE (A) 11

ID:1.3.1 One Inch IPS Firemain DischarcTe Pipinq

Sakura.Yamaguchi.ja

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