PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

1774-6O-Ring

Name: 1774-6
SKU: 5331-00-349-8358

Ware Machine Works Inc · NSN 5331-00-349-8358 · FSC 5331 · O-Ring

Verified by PartsTable

NSN 5331-00-349-8358 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-349-8358. Primary manufacturer part number: 1774-6.

5331-00-349-8358 — O-Ring illustration

Features

O-Ring — FSC 5331
Material: RUBBER SYNTHETIC
Cross-Sectional Height: 0.188 INCHES NOMINAL IN
1 verified cross-reference
Primary manufacturer: Ware Machine Works Inc

Applications

Fluid containment and leak prevention
Pressure boundary maintenance
Environmental sealing
Applications requiring Rubber Synthetic construction

General Description

The O-Ring, cataloged under National Stock Number 5331-00-349-8358, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Ware Machine Works Inc. Government technical data includes 2 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5331-00-349-8358
Primary Part Number	1774-6
Item Name	O-Ring
FSC / FSG	5331 / 53 — O-Ring
Manufacturer	Ware Machine Works Inc
Status	ACTIVE
Material	RUBBER SYNTHETIC
Cross-Sectional Height	0.188 INCHES NOMINAL IN

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 9

5330-00-171-657517746 INTERCHANGEABLE

Gasket

Dana Automotive Systems Group, Llc Dba Dana Sealing Products

3110-00-338-2272185N114 INTERCHANGEABLE

Bearing,roller,thrust

Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems

2530-00-589-8605F17507 INTERCHANGEABLE

Cylinder Assembly,hydraulic Brak

Federal Mogul Corp Sub Wagner Brake Moog Automotive Div

5330-00-710-665717746 INTERCHANGEABLE

Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions

4520-01-317-543817746 INTERCHANGEABLE

Heater,water,electric

The Electric Heater Co Dba Hubbell Electric Heater Co.

4520-01-377-7463F404403ES INTERCHANGEABLE

Heating Element,electrical,immer

The Electric Heater Co Dba Hubbell Electric Heater Co.

5995-01-380-433317746 10 B1 INTERCHANGEABLE

Cable Assembly,special Purpose,e

Volex, Inc. Dba Volex Power Cord Products Div Volex Inc.

4820-01-385-126917633 INTERCHANGEABLE

Diaphragm,valve,flat

Imi Cash Valve Inc

5340-01-562-091217746 INTERCHANGEABLE

Clamp,loop

Barnes Group Inc. Dba Barnes Distribution

Cross-Reference Index

Part Number	Manufacturer
1774-6	Ware Machine Works Inc (USA)

Related Parts

5330-00-171-6575INTERCHANGEABLE

GASKET

17746

3110-00-338-2272INTERCHANGEABLE

BEARING,ROLLER,THRUST

185N114

2530-00-589-8605INTERCHANGEABLE

CYLINDER ASSEMBLY,HYDRAULIC BRAK

F17507

5330-00-710-6657INTERCHANGEABLE

SEAL,PLAIN ENCASED

17746

4520-01-317-5438INTERCHANGEABLE

HEATER,WATER,ELECTRIC

17746

4520-01-377-7463INTERCHANGEABLE

HEATING ELEMENT,ELECTRICAL,IMMER

F404403ES

5995-01-380-4333INTERCHANGEABLE

CABLE ASSEMBLY,SPECIAL PURPOSE,E

17746 10 B1

4820-01-385-1269INTERCHANGEABLE

DIAPHRAGM,VALVE,FLAT

17633

5340-01-562-0912INTERCHANGEABLE

CLAMP,LOOP

17746

Frequently Asked Questions

What is NSN 5331-00-349-8358?

NSN 5331-00-349-8358 is a O-Ring, manufactured by Ware Machine Works Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-349-8358?

NSN 5331-00-349-8358 has 1 cross-referenced part number: 1774-6 (Ware Machine Works Inc).

What NSN replaces 5331-00-349-8358?

There are 9 known substitutes for 5331-00-349-8358: 5330-00-171-6575, 3110-00-338-2272, 2530-00-589-8605 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1774-6?

Key specifications for 1774-6: Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.188 INCHES NOMINAL IN. 2 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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