PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K70-0078O-Ring

Ward Leonard Ct Llc · NSN 5331-01-173-6606 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-173-6606 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-173-6606. Primary manufacturer part number: K70-0078.
Features
  • O-Ring — FSC 5331
  • 2 verified cross-references
  • Primary manufacturer: Ward Leonard Ct Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-173-6606, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Ward Leonard Ct Llc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersWard Leonard Ct Llc (CAGE 20019); C. E. Conover & Co., Inc. (CAGE 07060)
Technical Specifications
ParameterValue
NSN5331-01-173-6606
Primary Part NumberK70-0078
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-129-307510315 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
6610-00-185-94332154 INTERCHANGEABLE
Plate and Shaft
Mission Systems Davenport Inc.
4730-00-476-97152154 INTERCHANGEABLE
Tee-Y,drainage Pipe
Plastic & Steel Supply Co., Inc. Dba Plastic Engineered Products
5999-00-519-4802L680020-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon Co
6515-00-532-83842134 INTERCHANGEABLE
Syringe,hypodermic
Becton, Dickinson and Co Dba Becton Dickinson & Co
5330-00-582-984410015465-010 INTERCHANGEABLE
Retainer,packing
Us Army Aviation and Missile Command
4730-00-873-894215 P1 INTERCHANGEABLE
Coupling Half,quick Disconnect
Diamond-U-Products Inc
3610-00-894-87972154 INTERCHANGEABLE
Hub
Stanley Bostitch Inc Sub of the Stanley Works Corp
5331-00-930-3041AS3582-154 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
6645-00-950-8599 INTERCHANGEABLE
Clock,panel
Cross-Reference Index
Part NumberManufacturer
K70-0078 PRIMARY Ward Leonard Ct Llc (USA)
2-154 C. E. Conover & Co., Inc. (USA)
Related Parts
5935-00-129-3075INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
10315
6610-00-185-9433INTERCHANGEABLE
PLATE AND SHAFT
2154
4730-00-476-9715INTERCHANGEABLE
TEE-Y,DRAINAGE PIPE
2154
5999-00-519-4802INTERCHANGEABLE
DELAY LINE
L680020-1
6515-00-532-8384INTERCHANGEABLE
SYRINGE,HYPODERMIC
2134
5330-00-582-9844INTERCHANGEABLE
RETAINER,PACKING
10015465-010
4730-00-873-8942INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
15 P1
3610-00-894-8797INTERCHANGEABLE
HUB
2154
5331-00-930-3041INTERCHANGEABLE
O-RING
AS3582-154
6645-00-950-8599INTERCHANGEABLE
CLOCK,PANEL
6610-01-025-4718INTERCHANGEABLE
INDICATOR,AIR SPEED
2154
6625-01-090-4260INTERCHANGEABLE
VOLTMETER

Frequently Asked Questions

What is NSN 5331-01-173-6606?

NSN 5331-01-173-6606 is a O-Ring, manufactured by Ward Leonard Ct Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-173-6606?

NSN 5331-01-173-6606 has 2 cross-referenced part numbers: K70-0078 (Ward Leonard Ct Llc), 2-154 (C. E. Conover & Co., Inc.).

What NSN replaces 5331-01-173-6606?

There are 12 known substitutes for 5331-01-173-6606: 5935-00-129-3075, 6610-00-185-9433, 4730-00-476-9715 and 9 more. Verify interchangeability with system specifications before substitution.

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