PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

79279-006O-Ring

Weil Pump Co Inc · NSN 5331-01-299-7322 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-299-7322 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-299-7322. Primary manufacturer part number: 79279-006.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Weil Pump Co Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-299-7322, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Weil Pump Co Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersWeil Pump Co Inc (CAGE 64392)
Technical Specifications
ParameterValue
NSN5331-01-299-7322
Primary Part Number79279-006
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerWeil Pump Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2815-00-231-5714 INTERCHANGEABLE
Ring Set,piston
4330-00-274-6350B-3A1-4B INTERCHANGEABLE
Filter,fluid
Parker-Hannifin Corporation
5315-00-349-94384047 INTERCHANGEABLE
Pin,shoulder,headless
Wakmann Watch Company Inc
5945-00-628-64848151703-0002 INTERCHANGEABLE
Relay,hybrid
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5305-00-781-90594047 INTERCHANGEABLE
Thumbscrew
Roller Bearing Co of America, Inc Div Pic Design
5950-00-791-0924 INTERCHANGEABLE
Transformer,audio Frequency
5999-00-866-6211966499 INTERCHANGEABLE
Heater,thermal Release
Westinghouse Electric Corp
4310-00-900-16304047 INTERCHANGEABLE
Piston,compressor
Saylor-Beall Manufacturing Company
5975-01-071-6897 INTERCHANGEABLE
Test Plug
4920-01-080-5899DSC-5012-SR-2024 INTERCHANGEABLE
Converter,module
Natel Engineering Company, Llc Div Natel Chatsworth Division
Cross-Reference Index
Part NumberManufacturer
79279-006 PRIMARY Weil Pump Co Inc (USA)
4047 Weil Pump Co Inc (USA)
A1644-2 PIECE 42 Weil Pump Co Inc (USA)
Related Parts
2815-00-231-5714INTERCHANGEABLE
RING SET,PISTON
4330-00-274-6350INTERCHANGEABLE
FILTER,FLUID
B-3A1-4B
5315-00-349-9438INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
4047
5945-00-628-6484INTERCHANGEABLE
RELAY,HYBRID
8151703-0002
5305-00-781-9059INTERCHANGEABLE
THUMBSCREW
4047
5950-00-791-0924INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5999-00-866-6211INTERCHANGEABLE
HEATER,THERMAL RELEASE
966499
4310-00-900-1630INTERCHANGEABLE
PISTON,COMPRESSOR
4047
5975-01-071-6897INTERCHANGEABLE
TEST PLUG
4920-01-080-5899INTERCHANGEABLE
CONVERTER,MODULE
DSC-5012-SR-2024
6505-01-201-7010INTERCHANGEABLE
TEST STRIPS,OPHTHALMIC,ROSE BENG
PO-5600

Frequently Asked Questions

What is NSN 5331-01-299-7322?

NSN 5331-01-299-7322 is a O-Ring, manufactured by Weil Pump Co Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-299-7322?

NSN 5331-01-299-7322 has 3 cross-referenced part numbers: 79279-006 (Weil Pump Co Inc), 4047 (Weil Pump Co Inc), A1644-2 PIECE 42 (Weil Pump Co Inc).

What NSN replaces 5331-01-299-7322?

There are 11 known substitutes for 5331-01-299-7322: 2815-00-231-5714, 4330-00-274-6350, 5315-00-349-9438 and 8 more. Verify interchangeability with system specifications before substitution.

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