The O-Ring, cataloged under National Stock Number 5331-00-139-3341, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
O-Ring
FSC / FSG
5331 — O-ring (FSG 53)
Technical Specifications
Parameter
Value
NSN
5331-00-139-3341
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6610-00-319-84591010-22POSSIBLE MATCH
BAR,RETARD,INDICATOR
Possible match (shared part number)Aerosonic Llc
5330-00-400-5350101-022POSSIBLE MATCH
SEAL,TUBE
Possible match (shared part number)Sheffer Corp
5930-00-421-8349POSSIBLE MATCH
ADAPTER,SWITCH ACTUATOR
Possible match (shared part number)
5895-00-531-5442101022POSSIBLE MATCH
DECODER MODULE SUBA
Possible match (shared part number)Bae Systems Information and Electronic Systems Integration Inc.
5330-01-057-926510-1022POSSIBLE MATCH
GASKET
Possible match (shared part number)Fabwright Inc
5961-01-216-847643-11906-04POSSIBLE MATCH
SEMICONDUCTOR DEVICE,DIODE
Possible match (shared part number)Computer Products Inc Boschert Div
5342-01-446-5828101022POSSIBLE MATCH
TIE ROD,TENSIONING,THREADED END
Possible match (shared part number)Velvac Inc
3439-01-514-3982POSSIBLE MATCH
ELECTRODE
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
10-10-22
3/9Design control — primary reference
U.S. Government activity
Related Parts
6610-00-319-8459POSSIBLE MATCH
BAR,RETARD,INDICATOR
1010-22
5330-00-400-5350POSSIBLE MATCH
SEAL,TUBE
101-022
5930-00-421-8349POSSIBLE MATCH
ADAPTER,SWITCH ACTUATOR
5895-00-531-5442POSSIBLE MATCH
DECODER MODULE SUBA
101022
5330-01-057-9265POSSIBLE MATCH
GASKET
10-1022
5961-01-216-8476POSSIBLE MATCH
SEMICONDUCTOR DEVICE,DIODE
43-11906-04
5342-01-446-5828POSSIBLE MATCH
TIE ROD,TENSIONING,THREADED END
101022
3439-01-514-3982POSSIBLE MATCH
ELECTRODE
Frequently Asked Questions
What is NSN 5331-00-139-3341?
NSN 5331-00-139-3341 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
What NSN replaces 5331-00-139-3341?
8 possible matches (shared part number, not a government interchangeability claim): 6610-00-319-8459, 5330-00-400-5350, 5930-00-421-8349. Verify interchangeability with system specifications before substitution.
Is NSN 5331-00-139-3341 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.