PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22591O-Ring

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5331-01-213-9966 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-213-9966 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-213-9966. Primary manufacturer part number: 22591.
Features
  • O-Ring — FSC 5331
  • 3 verified cross-references
  • Primary manufacturer: Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-213-9966, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. This item has 3 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)
ManufacturersStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (CAGE 84760); Moen Inc (CAGE 16608)
Technical Specifications
ParameterValue
NSN5331-01-213-9966
Primary Part Number22591
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-3703 INTERCHANGEABLE
Cone and Rollers,tapered Roller
4820-00-216-90792427594 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Leslie Controls, Inc. Dba Leslie Controls Inc
5930-00-311-924824275 INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
2915-00-312-794424275 INTERCHANGEABLE
Spring,helical Comp
Triumph Engine Control Systems Llc
5945-00-451-1641952503-1 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon
6625-00-643-1805 INTERCHANGEABLE
Voltmeter
3110-00-812-9523 INTERCHANGEABLE
Bearing,roller,tapered
5865-00-907-6826 INTERCHANGEABLE
Oscillator,amplifie
3110-00-935-5613125-3818 INTERCHANGEABLE
Bearing,roller,needle
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
4310-01-093-8964 INTERCHANGEABLE
Housing,blower
Cross-Reference Index
Part NumberManufacturer
22591 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
24275 Moen Inc (USA)
24275 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
Related Parts
3110-00-100-3703INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
4820-00-216-9079INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
2427594
5930-00-311-9248INTERCHANGEABLE
SWITCH,ROTARY
24275
2915-00-312-7944INTERCHANGEABLE
SPRING,HELICAL COMP
24275
5945-00-451-1641INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
952503-1
6625-00-643-1805INTERCHANGEABLE
VOLTMETER
3110-00-812-9523INTERCHANGEABLE
BEARING,ROLLER,TAPERED
5865-00-907-6826INTERCHANGEABLE
OSCILLATOR,AMPLIFIE
3110-00-935-5613INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
125-3818
4310-01-093-8964INTERCHANGEABLE
HOUSING,BLOWER
4710-01-568-4667INTERCHANGEABLE
TUBE ASSEMBLY,METAL
22591
6515-01-598-4432INTERCHANGEABLE
INSERT,BACKPACK,MEDICAL
20792

Frequently Asked Questions

What is NSN 5331-01-213-9966?

NSN 5331-01-213-9966 is a O-Ring, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-213-9966?

NSN 5331-01-213-9966 has 3 cross-referenced part numbers: 22591 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 24275 (Moen Inc), 24275 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).

What NSN replaces 5331-01-213-9966?

There are 12 known substitutes for 5331-01-213-9966: 3110-00-100-3703, 4820-00-216-9079, 5930-00-311-9248 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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