PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25521Extinguisher,fire

Tyco Fire Products Lp · NSN 4210-00-035-9490 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-00-035-9490 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-035-9490. Primary manufacturer part number: 25521.
Features
  • Extinguisher,fire — FSC 4210
  • Design Type: STATIONARY
  • Extinguishing Agent Discharge Method: STORED PRESSURE
  • Capacity Rating: 150.0 POUNDS NOMINAL LBS
  • Extinguishing Agent for Which Designed: DRY CHEMICAL
  • 2 verified cross-references
  • Primary manufacturer: Tyco Fire Products Lp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Extinguisher,fire, cataloged under National Stock Number 4210-00-035-9490, is classified within Federal Supply Class 4210 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Tyco Fire Products Lp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN4210-00-035-9490
Primary Part Number25521
Item NameExtinguisher,fire
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerTyco Fire Products Lp
StatusACTIVE
Design TypeSTATIONARY
Extinguishing Agent Discharge MethodSTORED PRESSURE
Capacity Rating150.0 POUNDS NOMINAL LBS
Extinguishing Agent for Which DesignedDRY CHEMICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-0545 INTERCHANGEABLE
Cup,tapered Roller Bearing
4730-00-106-7319 INTERCHANGEABLE
Bushing,tank
5365-00-278-4990113933H INTERCHANGEABLE
Plug,machine Thread,magnetic
Navistar Intl Corp Truck Br Ohio Plant
4820-00-351-244525521 INTERCHANGEABLE
Valve,safety Relief
Moog Inc. Dba Ampac-Isp Corp
6685-00-723-55472552-1 INTERCHANGEABLE
Gage,pressure,dial Indicating
Rochester Sensors, Llc
4710-01-012-495325521 INTERCHANGEABLE
Tube Assembly,metal
Williams International Co., L.l.c.
5950-01-210-4433U-37A INTERCHANGEABLE
Transformer,power
Mpc Products Corporation Dba Woodward Mpc, Inc.
5330-01-356-5061101644 INTERCHANGEABLE
Retainer,packing
Paccar Winch Inc Dba Paccar Winch Division
5998-01-422-78973174AS7271 INTERCHANGEABLE
Holder,electrical Card
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
MIL-SK-150 W/HBDK Tyco Fire Products Lp (USA)
25521 PRIMARY Tyco Fire Products Lp (USA)
Related Parts
3110-00-100-0545INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
4730-00-106-7319INTERCHANGEABLE
BUSHING,TANK
5365-00-278-4990INTERCHANGEABLE
PLUG,MACHINE THREAD,MAGNETIC
113933H
4820-00-351-2445INTERCHANGEABLE
VALVE,SAFETY RELIEF
25521
6685-00-723-5547INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
2552-1
4710-01-012-4953INTERCHANGEABLE
TUBE ASSEMBLY,METAL
25521
5950-01-210-4433INTERCHANGEABLE
TRANSFORMER,POWER
U-37A
5330-01-356-5061INTERCHANGEABLE
RETAINER,PACKING
101644
5998-01-422-7897INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
3174AS7271

Frequently Asked Questions

What is NSN 4210-00-035-9490?

NSN 4210-00-035-9490 is a Extinguisher,fire, manufactured by Tyco Fire Products Lp, classified under FSC 4210 (No Item Name Available). Status: active.

What are the part numbers for NSN 4210-00-035-9490?

NSN 4210-00-035-9490 has 2 cross-referenced part numbers: MIL-SK-150 W/HBDK (Tyco Fire Products Lp), 25521 (Tyco Fire Products Lp).

What NSN replaces 4210-00-035-9490?

There are 9 known substitutes for 4210-00-035-9490: 3110-00-100-0545, 4730-00-106-7319, 5365-00-278-4990 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25521?

Key specifications for 25521: Design Type: STATIONARY; Extinguishing Agent Discharge Method: STORED PRESSURE; Capacity Rating: 150.0 POUNDS NOMINAL LBS; Extinguishing Agent for Which Designed: DRY CHEMICAL. 4 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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