NSN 5331-00-836-5053 · NIIN 008365053 · Part number 204904
Lockheed Martin Corp Electronics and Missiles Div · FSC 5331 — O-ring · FSG 53 — Hardware and Abrasives · CAGE 09205
Government record, cited
NSN 5331-00-836-5053 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-836-5053. Manufacturer of record part number: 204904.
Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Center Hole Diameter: 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
Material: RUBBER SYNTHETIC
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Corp Electronics and Missiles Div
Identification
NSN: 5331-00-836-5053
NIIN: 008365053
FSC: 5331 — O-ring
FSG: 53 — Hardware and Abrasives
Primary part number: 204904
Manufacturer: Lockheed Martin Corp Electronics and Missiles Div
General Description
The O-Ring, cataloged under National Stock Number 5331-00-836-5053, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5331-00-836-5053
Primary Part Number
204904
Item Name
O-Ring
FSC / FSG
5331 / 53 — O-ring
Manufacturer
Lockheed Martin Corp Electronics and Missiles Div
Status
ACTIVE
Cross-Sectional Height
0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Center Hole Diameter
0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
Material
RUBBER SYNTHETIC
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-014-00767-16X1-2SCPOSSIBLE MATCH
CAP,PROTECTIVE,DUST AND MOISTURE
Possible match (shared part number)Caplugs Llc Dba Mokon Div Caplugs
6680-01-081-778654186POSSIBLE MATCH
TRANSMITTER,LIQUID QUANTITY
Possible match (shared part number)Setra Systems, Inc. Dba Gems Sensors
4710-01-133-1538204904POSSIBLE MATCH
TUBE,BENT,METALLIC
Possible match (shared part number)Cummins Inc.
4810-01-253-812354186POSSIBLE MATCH
PARTS KIT,SOLENOID VALVE
Possible match (shared part number)Getinge Usa Inc
2530-01-298-4391204904POSSIBLE MATCH
PARTS KIT,SHOE BRAKE
Possible match (shared part number)Terex Usa, Llc Dba Terex Usa, Llc
Lockheed Martin Corp Electronics and Missiles Div (USA)
Reference documents
Reference
Meaning
5418-6
3/2Design control — primary reference
U.S. Government activity
Related Parts
5340-01-014-0076POSSIBLE MATCH
CAP,PROTECTIVE,DUST AND MOISTURE
7-16X1-2SC
6680-01-081-7786POSSIBLE MATCH
TRANSMITTER,LIQUID QUANTITY
54186
4710-01-133-1538POSSIBLE MATCH
TUBE,BENT,METALLIC
204904
4810-01-253-8123POSSIBLE MATCH
PARTS KIT,SOLENOID VALVE
54186
2530-01-298-4391POSSIBLE MATCH
PARTS KIT,SHOE BRAKE
204904
5136-01-727-1956POSSIBLE MATCH
TAP,THREAD CUTTING
54186
Frequently Asked Questions
What is NSN 5331-00-836-5053?
NSN 5331-00-836-5053 is a O-Ring, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 5331, O-ring. Status: active.
What part numbers are listed for NSN 5331-00-836-5053?
NSN 5331-00-836-5053 has 1 manufacturer part number on file: 204904 (Lockheed Martin Corp Electronics and Missiles Div).
What NSN replaces 5331-00-836-5053?
6 possible matches (shared part number, not a government interchangeability claim): 5340-01-014-0076, 6680-01-081-7786, 4710-01-133-1538. Verify interchangeability with system specifications before substitution.
What are the specifications of 204904?
Key specifications for 204904: Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN; Center Hole Diameter: 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5331-00-836-5053 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.