PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BB-1Cock,drain

Catching Engineering Co · NSN 4820-01-242-4403 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-242-4403 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-242-4403. Primary manufacturer part number: BB-1.
Features
  • Cock,drain — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Catching Engineering Co
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cock,drain, cataloged under National Stock Number 4820-01-242-4403, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Catching Engineering Co. This item has 3 commercial cross-references from 2 manufacturers, 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 NameCock,drain
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersCatching Engineering Co (CAGE 29676); Sullair Corp (CAGE 31654)
Technical Specifications
ParameterValue
NSN4820-01-242-4403
Primary Part NumberBB-1
Item NameCock,drain
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCatching Engineering Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4310-00-019-052123214 INTERCHANGEABLE
Valve Assembly,compressor
Norwalk Compreseer Company Inc Dba Norwalk Compressor Company
5950-00-118-8129278-2113-010 INTERCHANGEABLE
Transformer,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
1560-00-122-464441111 INTERCHANGEABLE
Crank Assembly,stab
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
4110-00-176-4291 INTERCHANGEABLE
Refrigerator,mechanical,biologic
4730-00-198-8792A146 INTERCHANGEABLE
Elbow,tube
Mueller Brass Co.
3455-00-230-7047717-015663 INTERCHANGEABLE
Cutter,milling,plain
Doall Baltimore Company
2990-00-360-7975A146 INTERCHANGEABLE
Bracket,mounting,en
Am General Llc
5120-00-409-5234215-01187-17 INTERCHANGEABLE
Locating Tool,harne
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
4320-00-468-0976A146 INTERCHANGEABLE
Impeller R H
Circor Naval Solutions Llc Dba Warren Pumps
3110-00-554-3374 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
A-146 Catching Engineering Co (USA)
41111 Sullair Corp (USA)
BB-1 PRIMARY Catching Engineering Co (USA)
Related Parts
4310-00-019-0521INTERCHANGEABLE
VALVE ASSEMBLY,COMPRESSOR
23214
5950-00-118-8129INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
278-2113-010
1560-00-122-4644INTERCHANGEABLE
CRANK ASSEMBLY,STAB
41111
4110-00-176-4291INTERCHANGEABLE
REFRIGERATOR,MECHANICAL,BIOLOGIC
4730-00-198-8792INTERCHANGEABLE
ELBOW,TUBE
A146
3455-00-230-7047INTERCHANGEABLE
CUTTER,MILLING,PLAIN
717-015663
2990-00-360-7975INTERCHANGEABLE
BRACKET,MOUNTING,EN
A146
5120-00-409-5234INTERCHANGEABLE
LOCATING TOOL,HARNE
215-01187-17
4320-00-468-0976INTERCHANGEABLE
IMPELLER R H
A146
3110-00-554-3374INTERCHANGEABLE
BEARING,BALL,ANNULAR
2915-00-672-4174INTERCHANGEABLE
COVER,OVERSPEED GOVERNOR
41111
5965-00-760-5404INTERCHANGEABLE
BOOM,MICROPHONE

Frequently Asked Questions

What is NSN 4820-01-242-4403?

NSN 4820-01-242-4403 is a Cock,drain, manufactured by Catching Engineering Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-242-4403?

NSN 4820-01-242-4403 has 3 cross-referenced part numbers: A-146 (Catching Engineering Co), 41111 (Sullair Corp), BB-1 (Catching Engineering Co).

What NSN replaces 4820-01-242-4403?

There are 12 known substitutes for 4820-01-242-4403: 4310-00-019-0521, 5950-00-118-8129, 1560-00-122-4644 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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