PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

67721Retainer,seal

Parker Hannifin Corporation Div Hydraulic Systems Division · NSN 4320-00-360-1637 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-360-1637 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-360-1637. Primary manufacturer part number: 67721.
Features
  • Retainer,seal — FSC 4320
  • General Characteristics Item Description: CRES; PASSIVATED; TRIANGULAR SHAPE; CORNER RADII 1.375 IN.; 0.930 IN. DIA OF CENTER HOLE; CENTER HOLE W/SLOT; SLOT 0.064 IN. W BY 0.125 IN. LG; TWO HOLES 1.905 IN. C TO C AND EACH ARE 1.100 IN. C TO C W/THIRD HOLE; HOLES LOCATED ONE IN EA CORNER; 0.210 IN. DIA OF HOLES IN
  • 1 verified cross-reference
  • Primary manufacturer: Parker Hannifin Corporation Div Hydraulic Systems Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Retainer,seal, cataloged under National Stock Number 4320-00-360-1637, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-360-1637
Primary Part Number67721
Item NameRetainer,seal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerParker Hannifin Corporation Div Hydraulic Systems Division
StatusACTIVE
General Characteristics Item DescriptionCRES; PASSIVATED; TRIANGULAR SHAPE; CORNER RADII 1.375 IN.; 0.930 IN. DIA OF CENTER HOLE; CENTER HOLE W/SLOT; SLOT 0.064 IN. W BY 0.125 IN. LG; TWO HOLES 1.905 IN. C TO C AND EACH ARE 1.100 IN. C TO C W/THIRD HOLE; HOLES LOCATED ONE IN EA CORNER; 0.210 IN. DIA OF HOLES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-359-9487200 72 H B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
Cross-Reference Index
Part NumberManufacturer
67721 PRIMARY Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
Related Parts
4730-00-359-9487INTERCHANGEABLE
CLAMP,HOSE
200 72 H B

Frequently Asked Questions

What is NSN 4320-00-360-1637?

NSN 4320-00-360-1637 is a Retainer,seal, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-360-1637?

NSN 4320-00-360-1637 has 1 cross-referenced part number: 67721 (Parker Hannifin Corporation Div Hydraulic Systems Division).

What NSN replaces 4320-00-360-1637?

There is 1 known substitute for 4320-00-360-1637: 4730-00-359-9487. Verify interchangeability with system specifications before substitution.

What are the specifications of 67721?

Key specifications for 67721: General Characteristics Item Description: CRES; PASSIVATED; TRIANGULAR SHAPE; CORNER RADII 1.375 IN.; 0.930 IN. DIA OF CENTER HOLE; CENTER HOLE W/SLOT; SLOT 0.064 IN. W BY 0.125 IN. LG; TWO HOLES 1.905 IN. C TO C AND EACH ARE 1.100 IN. C TO C W/THIRD HOLE; HOLES LOCATED ONE IN EA CORNER; 0.210 IN. DIA OF HOLES IN. 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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