PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

552491624Holder Assembly,nozzle and Hose

Harold D Hard Co · NSN 4210-00-306-5274 · FSC 4210 · No Item Name Available
Verified by PartsTable
NSN 4210-00-306-5274 — this item is cataloged by the U.S. Government under National Stock Number 4210-00-306-5274. Primary manufacturer part number: 552491624.
Features
  • Holder Assembly,nozzle and Hose — FSC 4210
  • General Characteristics Item Description: CONSISTS OF STEEL SPRING TENSION HOLDER FOR HOSE AND HORN RIVETED TO A BRASS CLAMPING BAND 1.875 IN. W BY 25.500 IN. LG INSCRIBED W/CHARGING WEIGHT BLANK SPACES,CAUTION INFORMATION AND OPERATING INSTRUCTIONS IN
  • 4 verified cross-references
  • Primary manufacturer: Harold D Hard Co
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Holder Assembly,nozzle and Hose, cataloged under National Stock Number 4210-00-306-5274, 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 Harold D Hard Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4210-00-306-5274
Primary Part Number552491624
Item NameHolder Assembly,nozzle and Hose
FSC / FSG4210 / 42 — No Item Name Available
ManufacturerHarold D Hard Co
StatusCANCELLED
General Characteristics Item DescriptionCONSISTS OF STEEL SPRING TENSION HOLDER FOR HOSE AND HORN RIVETED TO A BRASS CLAMPING BAND 1.875 IN. W BY 25.500 IN. LG INSCRIBED W/CHARGING WEIGHT BLANK SPACES,CAUTION INFORMATION AND OPERATING INSTRUCTIONS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
4820-00-268-91581105-318 INTERCHANGEABLE
Valve,gate
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
7420-01-071-3057 INTERCHANGEABLE
Calculator,electronic
7420-01-073-89215TI-1750 INTERCHANGEABLE
Calculator,electronic
Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division
Cross-Reference Index
Part NumberManufacturer
10146X Fyr-Fyter Co Inc (USA)
552491624 PRIMARY Harold D Hard Co (USA)
UBB AND SET3 Brooks Equipment Company, Llc Div Headquarters (USA)
50279 Fyr-Fyter Co Inc (USA)
Related Parts
4820-00-268-9158INTERCHANGEABLE
VALVE,GATE
1105-318
7420-01-071-3057INTERCHANGEABLE
CALCULATOR,ELECTRONIC
7420-01-073-8921INTERCHANGEABLE
CALCULATOR,ELECTRONIC
5TI-1750

Frequently Asked Questions

What is NSN 4210-00-306-5274?

NSN 4210-00-306-5274 is a Holder Assembly,nozzle and Hose, manufactured by Harold D Hard Co, classified under FSC 4210 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4210-00-306-5274?

NSN 4210-00-306-5274 has 4 cross-referenced part numbers: 10146X (Fyr-Fyter Co Inc), 552491624 (Harold D Hard Co), UBB AND SET3 (Brooks Equipment Company, Llc Div Headquarters), 50279 (Fyr-Fyter Co Inc).

What NSN replaces 4210-00-306-5274?

There are 3 known substitutes for 4210-00-306-5274: 4820-00-268-9158, 7420-01-071-3057, 7420-01-073-8921. Verify interchangeability with system specifications before substitution.

What are the specifications of 552491624?

Key specifications for 552491624: General Characteristics Item Description: CONSISTS OF STEEL SPRING TENSION HOLDER FOR HOSE AND HORN RIVETED TO A BRASS CLAMPING BAND 1.875 IN. W BY 25.500 IN. LG INSCRIBED W/CHARGING WEIGHT BLANK SPACES,CAUTION INFORMATION AND OPERATING INSTRUCTIONS IN; End Item Identification: FIRE EXTINGUISHER,HAND PORTABLE; W/S: FMS-KNOX CLASS FF; FMS-BUILD FRIGATES CLASS SHIPS; OSPREY CLASS MHC; AVENGER CLASS MCM. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4210-00-306-5274 still in active supply?

NSN 4210-00-306-5274 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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