PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB55S49-064PC176Screw,machine

Naval Sea Systems Command · NSN 5305-00-544-6802 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-544-6802 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-544-6802. Primary manufacturer part number: BB55S49-064PC176.
Features
  • Screw,machine — FSC 5305
  • Head Diameter: 2.125 INCHES NOMINAL IN
  • Screw Material: STEEL
  • Thread Quantity Per Inch: 12
  • Thread Length: 1.750 INCHES NOMINAL IN
  • Nominal Thread Diameter: 1.000 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-544-6802, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-544-6802
Primary Part NumberBB55S49-064PC176
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Head Diameter2.125 INCHES NOMINAL IN
Screw MaterialSTEEL
Thread Quantity Per Inch12
Thread Length1.750 INCHES NOMINAL IN
Nominal Thread Diameter1.000 INCHES IN
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNF
Thread Class2B
Fastener Length2.188 INCHES NOMINAL IN
Head StyleDRIVE
Head Height0.375 INCHES NOMINAL IN
Internal Drive StyleSLOT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0688759 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
2010-00-213-0764 INTERCHANGEABLE
Bearing,stave Shaped
5360-00-317-4697 INTERCHANGEABLE
Spring,lever Starti
5940-00-602-90413017-6 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
5940-00-665-9568 INTERCHANGEABLE
Splice,conductor
5910-00-666-8236SMB177076 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1260-01-134-34103017-6 INTERCHANGEABLE
Switch Cap Assembly
Leidos, Inc. Div Cyber and Information Solutions Services
6105-01-176-342430176 INTERCHANGEABLE
Motor,alternating Current
L & R Manufacturing Company
5306-01-505-416311-018 INTERCHANGEABLE
Bolt,machine
Konrad Marine Inc Div Konrad Marine
5306-01-505-465711-047 INTERCHANGEABLE
Bolt,machine
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
BB55S49-064PC176 PRIMARY Naval Sea Systems Command (USA)
BB61S49-04PC176 PRIMARY Naval Sea Systems Command (USA)
BB57S49-018PC176 Naval Ship Systems Command (USA)
BB58S49-059PC176 PRIMARY Naval Sea Systems Command (USA)
AS11S49-25PC176 Naval Ship Systems Command (USA)
CV41S4901-4PC176 Naval Ship Systems Command (USA)
39B01624PC176 Naval Ship Systems Command (USA)
BB57S49-01PC176 Naval Ship Systems Command (USA)
BB61S49-018PC176 Naval Ship Systems Command (USA)
39B01626PC176 PRIMARY Naval Sea Systems Command (USA)
BB57S49-01PC176 PRIMARY Naval Sea Systems Command (USA)
BB55S49077PC176 Naval Sea Systems Command (USA)
831-1213ITEM93 Naval Ship Systems Command (USA)
BB58S49-073PC176 Naval Ship Systems Command (USA)
BB55S49-090PC176 Naval Ship Systems Command (USA)
AS11S49-8PC176 Naval Ship Systems Command (USA)
36B01867PC176 Naval Ship Systems Command (USA)
36B01840PC176 Naval Ship Systems Command (USA)
36B01840PC176 PRIMARY Naval Sea Systems Command (USA)
BB61S49-04PC176 Naval Ship Systems Command (USA)
Related Parts
3110-00-100-0688INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
759
2010-00-213-0764INTERCHANGEABLE
BEARING,STAVE SHAPED
5360-00-317-4697INTERCHANGEABLE
SPRING,LEVER STARTI
5940-00-602-9041INTERCHANGEABLE
TERMINAL,LUG
3017-6
5940-00-665-9568INTERCHANGEABLE
SPLICE,CONDUCTOR
5910-00-666-8236INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
SMB177076
1260-01-134-3410INTERCHANGEABLE
SWITCH CAP ASSEMBLY
3017-6
6105-01-176-3424INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
30176
5306-01-505-4163INTERCHANGEABLE
BOLT,MACHINE
11-018
5306-01-505-4657INTERCHANGEABLE
BOLT,MACHINE
11-047
3040-01-505-5977INTERCHANGEABLE
HOUSING,MECHANICAL DRIVE
30-176
5130-01-593-3708INTERCHANGEABLE
WRENCH SET,SOCKET
30176

Frequently Asked Questions

What is NSN 5305-00-544-6802?

NSN 5305-00-544-6802 is a Screw,machine, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-544-6802?

NSN 5305-00-544-6802 has 50 cross-referenced part numbers: BB55S49-064PC176 (Naval Sea Systems Command), BB61S49-04PC176 (Naval Sea Systems Command), BB57S49-018PC176 (Naval Ship Systems Command), BB58S49-059PC176 (Naval Sea Systems Command), AS11S49-25PC176 (Naval Ship Systems Command) and 45 more.

What NSN replaces 5305-00-544-6802?

There are 12 known substitutes for 5305-00-544-6802: 3110-00-100-0688, 2010-00-213-0764, 5360-00-317-4697 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BB55S49-064PC176?

Key specifications for BB55S49-064PC176: Head Diameter: 2.125 INCHES NOMINAL IN; Screw Material: STEEL; Thread Quantity Per Inch: 12; Thread Length: 1.750 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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