PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

526002Mouthpiece,regulator

Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners · NSN 4220-01-121-0512 · FSC 4220 · No Item Name Available
Verified by PartsTable
NSN 4220-01-121-0512 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-121-0512. Primary manufacturer part number: 526002.
Features
  • Mouthpiece,regulator — FSC 4220
  • General Characteristics Item Description: RUBBER CHLOROPRENE
  • 5 verified cross-references
  • Primary manufacturer: Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mouthpiece,regulator, cataloged under National Stock Number 4220-01-121-0512, is classified within Federal Supply Class 4220 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4220-01-121-0512
Primary Part Number526002
Item NameMouthpiece,regulator
FSC / FSG4220 / 42 — No Item Name Available
ManufacturerUke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners
StatusACTIVE
General Characteristics Item DescriptionRUBBER CHLOROPRENE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-003-5505SFR188P1K25 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
5835-00-195-7508 INTERCHANGEABLE
Band,brake
5325-00-449-30222600-2 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
2805-00-737-6702526002 INTERCHANGEABLE
Bearing Crank Shaft
Renk America Llc Div Renk America
2530-00-741-1070F112398 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
3030-00-879-8741 INTERCHANGEABLE
Belts,v,matched Set
1650-00-934-8456105878 INTERCHANGEABLE
Housing,servo,hydra
Woodward Hrt Inc
4820-01-006-07311857-26002 INTERCHANGEABLE
Valve,ball
Wheeler Fleet Solutions, Co.
3460-01-082-911826002 INTERCHANGEABLE
Pilot,counterbore
Mortco Corp
5961-01-110-6858 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
526002 PRIMARY Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners (USA)
01-040-101 Under Sea Industries Inc Sub of S C Johnson and Son Inc (USA)
H3043-4 Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners (USA)
26002 Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners (USA)
1058-78 Aqualung Usa, Inc (USA)
Related Parts
3110-00-003-5505INTERCHANGEABLE
BEARING,BALL,ANNULAR
SFR188P1K25
5835-00-195-7508INTERCHANGEABLE
BAND,BRAKE
5325-00-449-3022INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
2600-2
2805-00-737-6702INTERCHANGEABLE
BEARING CRANK SHAFT
526002
2530-00-741-1070INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
F112398
3030-00-879-8741INTERCHANGEABLE
BELTS,V,MATCHED SET
1650-00-934-8456INTERCHANGEABLE
HOUSING,SERVO,HYDRA
105878
4820-01-006-0731INTERCHANGEABLE
VALVE,BALL
1857-26002
3460-01-082-9118INTERCHANGEABLE
PILOT,COUNTERBORE
26002
5961-01-110-6858INTERCHANGEABLE
TRANSISTOR
5930-01-166-7064INTERCHANGEABLE
HANDLE,SWITCH
206-2145188PC68
1650-01-174-3949INTERCHANGEABLE
FILTER,FLUID
7M621-1

Frequently Asked Questions

What is NSN 4220-01-121-0512?

NSN 4220-01-121-0512 is a Mouthpiece,regulator, manufactured by Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners, classified under FSC 4220 (No Item Name Available). Status: active.

What are the part numbers for NSN 4220-01-121-0512?

NSN 4220-01-121-0512 has 5 cross-referenced part numbers: 526002 (Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners), 01-040-101 (Under Sea Industries Inc Sub of S C Johnson and Son Inc), H3043-4 (Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners), 26002 (Uke Corporation Dba Uke Corp Div Mustafa T Uke & Alan K Uke Partners), 1058-78 (Aqualung Usa, Inc).

What NSN replaces 4220-01-121-0512?

There are 12 known substitutes for 4220-01-121-0512: 3110-00-003-5505, 5835-00-195-7508, 5325-00-449-3022 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 526002?

Key specifications for 526002: General Characteristics Item Description: RUBBER CHLOROPRENE. 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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