PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB55S49077PC187Follower,cylinder

Naval Ship Systems Command · NSN 4310-00-332-0209 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-332-0209 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-332-0209. Primary manufacturer part number: BB55S49077PC187.
Features
  • Follower,cylinder — FSC 4310
  • General Characteristics Item Description: MATERIAL CAST IRON,1.500 IN. OD,0.875 IN. ID,0.062 IN. BY 0.016 IN. GROOVE,O/A HEIGHT 0.531 IN
  • 3 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Follower,cylinder, cataloged under National Stock Number 4310-00-332-0209, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-332-0209
Primary Part NumberBB55S49077PC187
Item NameFollower,cylinder
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
General Characteristics Item DescriptionMATERIAL CAST IRON,1.500 IN. OD,0.875 IN. ID,0.062 IN. BY 0.016 IN. GROOVE,O/A HEIGHT 0.531 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-042-6758 INTERCHANGEABLE
Washer,lock
5306-00-208-554630187 INTERCHANGEABLE
Bolt,machine
Dana Corp Spicer Transmission Div
9340-00-978-2039 INTERCHANGEABLE
Glass,laminated
4320-01-281-444330187 INTERCHANGEABLE
Stopper,pump
W.w. Grainger, Inc. Div Government Sales Division
2910-01-344-57912020-30 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
4820-01-418-761530187 INTERCHANGEABLE
Valve,safety Relief
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
5985-01-438-850930187 INTERCHANGEABLE
Attenuator,fixed
Caes Systems Llc
4820-01-506-9068330187-010NM INTERCHANGEABLE
Disk,valve
Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris
8465-01-688-851130187 INTERCHANGEABLE
Bag,weapon Equipment,carrier
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
30-187 Hardie-Tynes Co., Inc. (USA)
150-587PC187 Hardie-Tynes Co., Inc. (USA)
BB55S49077PC187 PRIMARY Naval Ship Systems Command (USA)
Related Parts
5310-00-042-6758INTERCHANGEABLE
WASHER,LOCK
5306-00-208-5546INTERCHANGEABLE
BOLT,MACHINE
30187
9340-00-978-2039INTERCHANGEABLE
GLASS,LAMINATED
4320-01-281-4443INTERCHANGEABLE
STOPPER,PUMP
30187
2910-01-344-5791INTERCHANGEABLE
FILTER ELEMENT,FLUID
2020-30
4820-01-418-7615INTERCHANGEABLE
VALVE,SAFETY RELIEF
30187
5985-01-438-8509INTERCHANGEABLE
ATTENUATOR,FIXED
30187
4820-01-506-9068INTERCHANGEABLE
DISK,VALVE
330187-010NM
8465-01-688-8511INTERCHANGEABLE
BAG,WEAPON EQUIPMENT,CARRIER
30187

Frequently Asked Questions

What is NSN 4310-00-332-0209?

NSN 4310-00-332-0209 is a Follower,cylinder, manufactured by Naval Ship Systems Command, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-332-0209?

NSN 4310-00-332-0209 has 3 cross-referenced part numbers: 30-187 (Hardie-Tynes Co., Inc.), 150-587PC187 (Hardie-Tynes Co., Inc.), BB55S49077PC187 (Naval Ship Systems Command).

What NSN replaces 4310-00-332-0209?

There are 9 known substitutes for 4310-00-332-0209: 5310-00-042-6758, 5306-00-208-5546, 9340-00-978-2039 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BB55S49077PC187?

Key specifications for BB55S49077PC187: General Characteristics Item Description: MATERIAL CAST IRON,1.500 IN. OD,0.875 IN. ID,0.062 IN. BY 0.016 IN. GROOVE,O/A HEIGHT 0.531 IN. 1 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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