PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS1611-234O-Ring

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5331-01-021-4258 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-021-4258 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-021-4258. Primary manufacturer part number: NAS1611-234.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM
  • Center Hole Diameter: 2.960 INCHES MINIMUM AND 3.008 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 5 verified cross-references
  • Primary manufacturer: National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Ethylene-Propylene Class Epm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-021-4258, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-021-4258
Primary Part NumberNAS1611-234
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
MaterialRUBBER ETHYLENE-PROPYLENE CLASS EPM
Center Hole Diameter2.960 INCHES MINIMUM AND 3.008 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-050-2680 INTERCHANGEABLE
Switch,toggle
5133-00-228-1368 INTERCHANGEABLE
Drill,twist
4310-00-332-0207 INTERCHANGEABLE
Follower,cylinder
3040-00-470-688920119 INTERCHANGEABLE
Shoe,cam Roller,inj
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6105-00-887-045420119 INTERCHANGEABLE
Ring Assembly,brush
Cunico Corporation
5360-01-076-286720-128 INTERCHANGEABLE
Spring
Stewart & Stevenson Power Products Llc
2520-01-081-6968D74449 INTERCHANGEABLE
Housing Assembly,differential
Cnh Industrial America Llc Dba Cnh America
1680-01-157-0033276345 INTERCHANGEABLE
Card Support,fire and Overheat
Kidde Technologies, Inc Div Kidde Aerospace and Defense
4920-01-299-027720119 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5310-01-301-52330200139972S INTERCHANGEABLE
Nut,plain,hexagon
Prestolite Electric Inc
Cross-Reference Index
Part NumberManufacturer
J72078AN2-9 Gas Equipment Engineering Corporation, the Dba Geeco (USA)
20119 Delphi Instruments Inc Sub Od Comsip Inc (USA)
NAS1611-234 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
PRP568-234-805-70 PRIMARY Parco, Llc (USA)
NAS1613 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5930-00-050-2680INTERCHANGEABLE
SWITCH,TOGGLE
5133-00-228-1368INTERCHANGEABLE
DRILL,TWIST
4310-00-332-0207INTERCHANGEABLE
FOLLOWER,CYLINDER
3040-00-470-6889INTERCHANGEABLE
SHOE,CAM ROLLER,INJ
20119
6105-00-887-0454INTERCHANGEABLE
RING ASSEMBLY,BRUSH
20119
5360-01-076-2867INTERCHANGEABLE
SPRING
20-128
2520-01-081-6968INTERCHANGEABLE
HOUSING ASSEMBLY,DIFFERENTIAL
D74449
1680-01-157-0033INTERCHANGEABLE
CARD SUPPORT,FIRE AND OVERHEAT
276345
4920-01-299-0277INTERCHANGEABLE
TEST PROGRAM SET
20119
5310-01-301-5233INTERCHANGEABLE
NUT,PLAIN,HEXAGON
0200139972S
5331-01-342-2543INTERCHANGEABLE
O-RING
201-19
7930-01-412-1032INTERCHANGEABLE
RUG AND ROOM FRESHE
7100049083

Frequently Asked Questions

What is NSN 5331-01-021-4258?

NSN 5331-01-021-4258 is a O-Ring, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-021-4258?

NSN 5331-01-021-4258 has 5 cross-referenced part numbers: J72078AN2-9 (Gas Equipment Engineering Corporation, the Dba Geeco), 20119 (Delphi Instruments Inc Sub Od Comsip Inc), NAS1611-234 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), PRP568-234-805-70 (Parco, Llc), NAS1613 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5331-01-021-4258?

There are 12 known substitutes for 5331-01-021-4258: 5930-00-050-2680, 5133-00-228-1368, 4310-00-332-0207 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS1611-234?

Key specifications for NAS1611-234: Material: RUBBER ETHYLENE-PROPYLENE CLASS EPM; Center Hole Diameter: 2.960 INCHES MINIMUM AND 3.008 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 3 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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