N6426723Q0071 Draft PD.pdf

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PURCHASE DESCRIPTION

MK41 VLS Fasteners SCD 21745

1. INTRODUCTION

PEO IWS 3L has tasked NSWC Corona to procure MK41 Vertical Launching System (VLS) Fasteners.

2. BACKGROUND

The Baseline VII MK41 VLS on various Navy ships are being upgraded per SCD 21745. These fasteners will be used for upgrading VLS hardware onboard surface ships.

3. REQUIREMENTS

Name: Screw, Flush Head, 100 Deg Part Number: NAS1221-6-13 NIIN: 013122594 (An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads.

252 EA

Part Number: NAS1221-6-16 NIIN: 013122593 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads.

504 EA

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Part Number: NAS1580C8H17 NIIN: 013520625 (A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25

mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

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Item # DESCRIPTION QTY

Name: Bolt, Shear Part Number: NAS1226-3 NIIN: 000667506 (A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver.

The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025

mm) or less of a specific diameter for items one inch (25

mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards.

168 EA

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Name: Fastener-Blind, Internally Threading Part Number: NAS1669-6L20 NIIN: 015167866 (An item consisting of two or more of the following components: stem, rivet body, sleeve, expander, bolt, and collar. It is a headed fastening device with the shank designed to be expanded by means of a separate or integral stem or mandrel, or bolt and expander. It is designed to be installed or expanded from one side only.

264 EA

Name: Screw, Flush Head, 100 Deg Part Number: NAS1958C11 NIIN: 013124950 (A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver.

The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025

mm) or less of a specific diameter for items one inch (25

mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads.

420 EA

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Name: Bolt, Flat, 100 Deg Part Number: NAS1978C21H NIIN: 013120702 (A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25

mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

168 EA

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ADDITIONAL INFORMATION

A. PERIOD OF PERFORMANCE / REQUIRED DELIVERY DATES

B. PLACE OF PERFORMANCE

SHIPPING ADDRESS

C. INSPECTION AND ACCEPTANCE

D. TECHNICAL POINT OF CONTACT

RDD: 30 days after contract award

N/A

NSWC CORONA DIV

ATTN,MS23 BLDG 575

1999 FOURTH STREET

NORCO CA 92860

TBD

TBD