PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

12127O-Ring

Name: 12127
SKU: 5331-01-549-0545

Teledyne Flir Unmanned Ground Systems, Inc · NSN 5331-01-549-0545 · FSC 5331 · O-Ring

Verified by PartsTable

NSN 5331-01-549-0545 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-549-0545. Primary manufacturer part number: 12127.

5331-01-549-0545 — O-Ring illustration

Features

O-Ring — FSC 5331
4 verified cross-references
Primary manufacturer: Teledyne Flir Unmanned Ground Systems, Inc

Applications

Fluid containment and leak prevention
Pressure boundary maintenance
Environmental sealing

General Description

The O-Ring, cataloged under National Stock Number 5331-01-549-0545, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Teledyne Flir Unmanned Ground Systems, Inc. This item has 4 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.

Catalog Facts

Item Name	O-Ring
FSC / FSG	5331 — O-Ring (FSG 53)
Manufacturers	Irobot Corporation (CAGE 066R1); Teledyne Flir Unmanned Ground Systems, Inc (CAGE 7KJ69); Tecnodife Srl (CAGE A8547); Nimikkeistokeskus Ncb Finland (CAGE A486G)

Technical Specifications

Parameter	Value
NSN	5331-01-549-0545
Primary Part Number	12127
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-Ring
Manufacturer	Teledyne Flir Unmanned Ground Systems, Inc
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 12

5133-00-227-9669 INTERCHANGEABLE

Drill,twist

5330-00-383-7350E59030M INTERCHANGEABLE

Gasket

Chrysler Realty Company Llc Dba Daimler Chrysler

5950-01-089-6513 INTERCHANGEABLE

Coil,radio Frequency

5310-01-103-6935 INTERCHANGEABLE

Nut

4720-01-285-623348127-1 INTERCHANGEABLE

Hose Set,nonmetallic

Elbitamerica, Inc.

5930-01-389-120912127 INTERCHANGEABLE

Switch,push

Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco

5330-01-483-683412127 INTERCHANGEABLE

Gasket and Seal Set

Lake Shore Systems, Inc.

4540-01-551-722812127 INTERCHANGEABLE

Sluice,incinerator

Gta Marine Dba Gta Marine

4710-01-562-607612127 INTERCHANGEABLE

Tube,metallic

Bae Systems Information & Electronic Systems Integration Inc.

5120-01-570-253012127 INTERCHANGEABLE

Forceps,nonsurgical

Tecra Industries, Inc. Dba Tecra Industries Inc Div Tecra Tools

Cross-Reference Index

Part Number	Manufacturer
12127	Irobot Corporation (USA)
12127 PRIMARY	Teledyne Flir Unmanned Ground Systems, Inc (USA)
12127	Tecnodife Srl (ITA)
10421965	Nimikkeistokeskus Ncb Finland (FIN)

Related Parts

5133-00-227-9669INTERCHANGEABLE

DRILL,TWIST

5330-00-383-7350INTERCHANGEABLE

GASKET

E59030M

5950-01-089-6513INTERCHANGEABLE

COIL,RADIO FREQUENCY

5310-01-103-6935INTERCHANGEABLE

NUT

4720-01-285-6233INTERCHANGEABLE

HOSE SET,NONMETALLIC

48127-1

5930-01-389-1209INTERCHANGEABLE

SWITCH,PUSH

12127

5330-01-483-6834INTERCHANGEABLE

GASKET AND SEAL SET

12127

4540-01-551-7228INTERCHANGEABLE

SLUICE,INCINERATOR

12127

4710-01-562-6076INTERCHANGEABLE

TUBE,METALLIC

12127

5120-01-570-2530INTERCHANGEABLE

FORCEPS,NONSURGICAL

12127

5340-01-610-0168INTERCHANGEABLE

STRAP,WEBBING

12127

2915-01-618-5073INTERCHANGEABLE

PARTS KIT,ENGINE FUEL PUMP

121-27

Frequently Asked Questions

What is NSN 5331-01-549-0545?

NSN 5331-01-549-0545 is a O-Ring, manufactured by Teledyne Flir Unmanned Ground Systems, Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-549-0545?

NSN 5331-01-549-0545 has 4 cross-referenced part numbers: 12127 (Irobot Corporation), 12127 (Teledyne Flir Unmanned Ground Systems, Inc), 12127 (Tecnodife Srl), 10421965 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 5331-01-549-0545?

There are 12 known substitutes for 5331-01-549-0545: 5133-00-227-9669, 5330-00-383-7350, 5950-01-089-6513 and 9 more. Verify interchangeability with system specifications before substitution.

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

PartsTable Design LLC · partstable.com