PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

74-61O-Ring

Name: 74-61
SKU: 5331-00-238-7955

Dresser Industries Inc Leroi Div · NSN 5331-00-238-7955 · FSC 5331 · O-Ring

Verified by PartsTable

NSN 5331-00-238-7955 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-238-7955. Primary manufacturer part number: 74-61.

5331-00-238-7955 — O-Ring illustration

Features

O-Ring — FSC 5331
Material: RUBBER CHLOROPRENE CLASS CR
Center Hole Diameter: 4.000 INCHES NOMINAL IN
Cross-Sectional Height: 0.117 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
1 verified cross-reference
Primary manufacturer: Dresser Industries Inc Leroi Div

Applications

Fluid containment and leak prevention
Pressure boundary maintenance
Environmental sealing
Applications requiring Rubber Chloroprene Class Cr construction

General Description

The O-Ring, cataloged under National Stock Number 5331-00-238-7955, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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

Parameter	Value
NSN	5331-00-238-7955
Primary Part Number	74-61
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-Ring
Manufacturer	Dresser Industries Inc Leroi Div
Status	ACTIVE
Material	RUBBER CHLOROPRENE CLASS CR
Center Hole Diameter	4.000 INCHES NOMINAL IN
Cross-Sectional Height	0.117 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 12

4510-00-105-14357361-7461 INTERCHANGEABLE

Fountain,eye and Face Wash,emerg

Haws Co Inc Dba Western Emergency Equipment

6760-00-114-2769 INTERCHANGEABLE

Filter,light,photographic Lens

5935-00-173-57167461 INTERCHANGEABLE

Socket,plug-in Electronic Compon

Eby Group, Llc, the Dba Eby Company Div Eby Company

4130-00-274-6714A18A148 INTERCHANGEABLE

Filter-Drier,refrigerant

Frick Co

5330-00-291-1554125HD2 INTERCHANGEABLE

Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions

5915-00-502-4465293-1222-011 INTERCHANGEABLE

Filter,band Pass

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems

5935-00-665-72837461 INTERCHANGEABLE

Connector,plug,electrical

Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division

5950-00-698-1253 INTERCHANGEABLE

Coil,radio Frequency

5930-00-794-7873228MS163P001 INTERCHANGEABLE

Switch,rotary

Raytheon Company Dba Raytheon Co

4820-01-037-1941 INTERCHANGEABLE

Valve,double Pilot Check

Cross-Reference Index

Part Number	Manufacturer
74-61 PRIMARY	Dresser Industries Inc Leroi Div (USA)

Related Parts

4510-00-105-1435INTERCHANGEABLE

FOUNTAIN,EYE AND FACE WASH,EMERG

7361-7461

6760-00-114-2769INTERCHANGEABLE

FILTER,LIGHT,PHOTOGRAPHIC LENS

5935-00-173-5716INTERCHANGEABLE

SOCKET,PLUG-IN ELECTRONIC COMPON

7461

4130-00-274-6714INTERCHANGEABLE

FILTER-DRIER,REFRIGERANT

A18A148

5330-00-291-1554INTERCHANGEABLE

SEAL,PLAIN ENCASED

125HD2

5915-00-502-4465INTERCHANGEABLE

FILTER,BAND PASS

293-1222-011

5935-00-665-7283INTERCHANGEABLE

CONNECTOR,PLUG,ELECTRICAL

7461

5950-00-698-1253INTERCHANGEABLE

COIL,RADIO FREQUENCY

5930-00-794-7873INTERCHANGEABLE

SWITCH,ROTARY

228MS163P001

4820-01-037-1941INTERCHANGEABLE

VALVE,DOUBLE PILOT CHECK

5340-01-170-3168INTERCHANGEABLE

COVER,ACCESS

7461-000

5925-01-641-2041INTERCHANGEABLE

CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5331-00-238-7955?

NSN 5331-00-238-7955 is a O-Ring, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-238-7955?

NSN 5331-00-238-7955 has 1 cross-referenced part number: 74-61 (Dresser Industries Inc Leroi Div).

What NSN replaces 5331-00-238-7955?

There are 12 known substitutes for 5331-00-238-7955: 4510-00-105-1435, 6760-00-114-2769, 5935-00-173-5716 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 74-61?

Key specifications for 74-61: Material: RUBBER CHLOROPRENE CLASS CR; Center Hole Diameter: 4.000 INCHES NOMINAL IN; Cross-Sectional Height: 0.117 INCHES MINIMUM AND 0.133 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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