PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21751Ring,clamping

Hatch & Kirk, Inc. · NSN 4330-00-414-6079 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-00-414-6079 — this item is cataloged by the U.S. Government under National Stock Number 4330-00-414-6079. Primary manufacturer part number: 21751.
Features
  • Ring,clamping — FSC 4330
  • General Characteristics Item Description: BRASS PAINTED BLACK; 4.812 IN. OD 4.159 IN. OD; W/FOUR STUDS,UNF0.312-24 RH 2A,EQUALLY SPACED ON 5.000 IN. BOLT CIRCLE; FURNISHED WITH FOUR WASHERS; 0.875 IN. THD LG; 1.125 IN. O/A LG A
  • 8 verified cross-references
  • Primary manufacturer: Hatch & Kirk, Inc.
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,clamping, cataloged under National Stock Number 4330-00-414-6079, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4330-00-414-6079
Primary Part Number21751
Item NameRing,clamping
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusACTIVE
General Characteristics Item DescriptionBRASS PAINTED BLACK; 4.812 IN. OD 4.159 IN. OD; W/FOUR STUDS,UNF0.312-24 RH 2A,EQUALLY SPACED ON 5.000 IN. BOLT CIRCLE; FURNISHED WITH FOUR WASHERS; 0.875 IN. THD LG; 1.125 IN. O/A LG A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5307-00-003-070921751 INTERCHANGEABLE
Stud
Industrial Technologies and Services Llc
6145-00-194-9842 INTERCHANGEABLE
Braid,wire
2530-00-621-3670F5380 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
3895-01-027-453921751 INTERCHANGEABLE
Piston,tamper
Stone Construction Equipment, Inc.
4730-01-028-22562157-1 INTERCHANGEABLE
Connector,multiple,fluid Pressur
Transdigm Inc Div Adelwiggins Group
5998-01-072-2477 INTERCHANGEABLE
Circuit Card Assembly
6105-01-081-5312 INTERCHANGEABLE
Stator,motor
4820-01-107-709421751 INTERCHANGEABLE
Valve,calibrated Flow
Kold-Ban International Ltd Div Kbi
3040-01-142-978221751 INTERCHANGEABLE
Shaft,agitator Assembly
Alliance Laundry Systems Llc
5120-01-430-8417 INTERCHANGEABLE
Wrench,spanner
Cross-Reference Index
Part NumberManufacturer
NP10118PC6 Armco Inc Nation Supply Co (USA)
21751 PRIMARY Hatch & Kirk, Inc. (USA)
21751 Arvinmeritor Inc (USA)
2175100 PRIMARY Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in (USA)
B-3434-003 Cooper Machinery Services Llc (USA)
NP10118PC6 Arvinmeritor Inc (USA)
21751 Cooper Machinery Services Llc (USA)
B3434-3 Arvinmeritor Inc (USA)
Related Parts
5307-00-003-0709INTERCHANGEABLE
STUD
21751
6145-00-194-9842INTERCHANGEABLE
BRAID,WIRE
2530-00-621-3670INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
F5380
3895-01-027-4539INTERCHANGEABLE
PISTON,TAMPER
21751
4730-01-028-2256INTERCHANGEABLE
CONNECTOR,MULTIPLE,FLUID PRESSUR
2157-1
5998-01-072-2477INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
6105-01-081-5312INTERCHANGEABLE
STATOR,MOTOR
4820-01-107-7094INTERCHANGEABLE
VALVE,CALIBRATED FLOW
21751
3040-01-142-9782INTERCHANGEABLE
SHAFT,AGITATOR ASSEMBLY
21751
5120-01-430-8417INTERCHANGEABLE
WRENCH,SPANNER

Frequently Asked Questions

What is NSN 4330-00-414-6079?

NSN 4330-00-414-6079 is a Ring,clamping, manufactured by Hatch & Kirk, Inc., classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-00-414-6079?

NSN 4330-00-414-6079 has 8 cross-referenced part numbers: NP10118PC6 (Armco Inc Nation Supply Co), 21751 (Hatch & Kirk, Inc.), 21751 (Arvinmeritor Inc), 2175100 (Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in), B-3434-003 (Cooper Machinery Services Llc) and 3 more.

What NSN replaces 4330-00-414-6079?

There are 10 known substitutes for 4330-00-414-6079: 5307-00-003-0709, 6145-00-194-9842, 2530-00-621-3670 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21751?

Key specifications for 21751: General Characteristics Item Description: BRASS PAINTED BLACK; 4.812 IN. OD 4.159 IN. OD; W/FOUR STUDS,UNF0.312-24 RH 2A,EQUALLY SPACED ON 5.000 IN. BOLT CIRCLE; FURNISHED WITH FOUR WASHERS; 0.875 IN. THD LG; 1.125 IN. O/A LG A. 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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