PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-31Cap,linear Actuating Cylinder

Bay State Controls Corporation · NSN 3040-01-388-5805 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-388-5805 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-388-5805. Primary manufacturer part number: B-31.
Features
  • Cap,linear Actuating Cylinder — FSC 3040
  • 1 verified cross-reference
  • Primary manufacturer: Bay State Controls Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-388-5805, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Bay State Controls Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap,linear Actuating Cylinder
FSC / FSG3040 — No Item Name Available (FSG 30)
ManufacturersBay State Controls Corporation (CAGE 66208)
Technical Specifications
ParameterValue
NSN3040-01-388-5805
Primary Part NumberB-31
Item NameCap,linear Actuating Cylinder
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerBay State Controls Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5365-00-116-318200-975847 INTERCHANGEABLE
Ring,gasket Sizing
Itw Food Equipment Group Llc Dba Hobart Service
5355-00-135-4386 INTERCHANGEABLE
Knob
3110-00-144-898810-16666 INTERCHANGEABLE
Bearing,ball,annular
Precision Aerospace Corporation Dba Precision Engine Control
3030-00-166-7554 INTERCHANGEABLE
Belt,v
3455-00-224-373210305 INTERCHANGEABLE
Cutter,milling,end
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5330-00-237-7149B31 INTERCHANGEABLE
Gasket
W.w. Grainger, Inc. Div Government Sales Division
5120-00-287-2502 INTERCHANGEABLE
Screwdriver,flat Tip
5365-00-619-3610B3-1 INTERCHANGEABLE
Shim
Roller Bearing Co of America, Inc Div Pic Design
5330-01-073-6966B-31 INTERCHANGEABLE
Gasket
Gardner Denver Inc.
6910-01-189-2277B431 INTERCHANGEABLE
Fern,sporangia
Carolina Biological Supply Co
Cross-Reference Index
Part NumberManufacturer
B-31 Bay State Controls Corporation (USA)
Related Parts
5365-00-116-3182INTERCHANGEABLE
RING,GASKET SIZING
00-975847
5355-00-135-4386INTERCHANGEABLE
KNOB
3110-00-144-8988INTERCHANGEABLE
BEARING,BALL,ANNULAR
10-16666
3030-00-166-7554INTERCHANGEABLE
BELT,V
3455-00-224-3732INTERCHANGEABLE
CUTTER,MILLING,END
10305
5330-00-237-7149INTERCHANGEABLE
GASKET
B31
5120-00-287-2502INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
5365-00-619-3610INTERCHANGEABLE
SHIM
B3-1
5330-01-073-6966INTERCHANGEABLE
GASKET
B-31
6910-01-189-2277INTERCHANGEABLE
FERN,SPORANGIA
B431
3530-01-280-4266INTERCHANGEABLE
GUIDE,THREAD,SEWING MACHINE
B31
5110-01-578-4860INTERCHANGEABLE
BLADE,SHEARS
B-3-1

Frequently Asked Questions

What is NSN 3040-01-388-5805?

NSN 3040-01-388-5805 is a Cap,linear Actuating Cylinder, manufactured by Bay State Controls Corporation, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-388-5805?

NSN 3040-01-388-5805 has 1 cross-referenced part number: B-31 (Bay State Controls Corporation).

What NSN replaces 3040-01-388-5805?

There are 12 known substitutes for 3040-01-388-5805: 5365-00-116-3182, 5355-00-135-4386, 3110-00-144-8988 and 9 more. Verify interchangeability with system specifications before substitution.

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