PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21310O-Ring

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 5331-00-599-2427 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-599-2427 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-599-2427. Primary manufacturer part number: 21310.
Features
  • O-Ring — FSC 5331
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE
  • Cross-Sectional Height: 0.087 INCHES NOMINAL IN
  • 7 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc. Div Space and Airborne Systems
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Plastic Polytetrafluoroethylene construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-599-2427, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-599-2427
Primary Part Number21310
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusCANCELLED
MaterialPLASTIC POLYTETRAFLUOROETHYLENE
Cross-Sectional Height0.087 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-071-66510526453-00 INTERCHANGEABLE
O-Ring
Hyster-Yale Group, Inc. Dba Yale Materials Handling
3110-00-156-142421310 INTERCHANGEABLE
Bearing,roller,self-Aligning
Skf Usa Inc.
2805-00-356-130121310 INTERCHANGEABLE
Body,breather Valve
Briggs and Stratton Corp
4720-00-451-2727213-10 INTERCHANGEABLE
Hose,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division
5945-00-476-1194860-204 INTERCHANGEABLE
Relay
Ranco Inc Ranco Controls Div
1005-00-499-438721310 INTERCHANGEABLE
Yoke Assembly,booster
Safran Power Usa Llc
4730-00-537-930121310 INTERCHANGEABLE
Expansion Joint,pipe
Hyspan Precision Products, Inc.
6145-00-553-7822 INTERCHANGEABLE
Cable,radio Frequency
5999-00-636-817421-310 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
5355-00-914-653321310 INTERCHANGEABLE
Dial,scale
Aerosonic Llc
Cross-Reference Index
Part NumberManufacturer
4790966-519 The Boeing Company (USA)
S2609-8T Shamban Polymer Tech Group (USA)
54A50C116-10 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
A6689-908-142 Zf Industrieantriebe Witten Gmbh (DEU)
S2609-8T Trelleborg Sealing Solutions Us, Inc. (USA)
21310 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
ARP568-908 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5331-00-071-6651INTERCHANGEABLE
O-RING
0526453-00
3110-00-156-1424INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
21310
2805-00-356-1301INTERCHANGEABLE
BODY,BREATHER VALVE
21310
4720-00-451-2727INTERCHANGEABLE
HOSE,NONMETALLIC
213-10
5945-00-476-1194INTERCHANGEABLE
RELAY
860-204
1005-00-499-4387INTERCHANGEABLE
YOKE ASSEMBLY,BOOSTER
21310
4730-00-537-9301INTERCHANGEABLE
EXPANSION JOINT,PIPE
21310
6145-00-553-7822INTERCHANGEABLE
CABLE,RADIO FREQUENCY
5999-00-636-8174INTERCHANGEABLE
CONTACT,ELECTRICAL
21-310
5355-00-914-6533INTERCHANGEABLE
DIAL,SCALE
21310
4730-01-348-0629INTERCHANGEABLE
REDUCER,HOSE
21310
6060-01-348-5030INTERCHANGEABLE
SPLICE,FIBER OPTIC CONDUCTOR
21300

Frequently Asked Questions

What is NSN 5331-00-599-2427?

NSN 5331-00-599-2427 is a O-Ring, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-599-2427?

NSN 5331-00-599-2427 has 7 cross-referenced part numbers: 4790966-519 (The Boeing Company), S2609-8T (Shamban Polymer Tech Group), 54A50C116-10 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), A6689-908-142 (Zf Industrieantriebe Witten Gmbh), S2609-8T (Trelleborg Sealing Solutions Us, Inc.) and 2 more.

What NSN replaces 5331-00-599-2427?

There are 12 known substitutes for 5331-00-599-2427: 5331-00-071-6651, 3110-00-156-1424, 2805-00-356-1301 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21310?

Key specifications for 21310: Material: PLASTIC POLYTETRAFLUOROETHYLENE; Cross-Sectional Height: 0.087 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-599-2427 still in active supply?

NSN 5331-00-599-2427 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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