PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

174 ITEM 6Orifice

Wellman Group · NSN 6680-01-290-4027 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-290-4027 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-290-4027. Primary manufacturer part number: 174 ITEM 6.
Features
  • Orifice — FSC 6680
  • 5 verified cross-references
  • Primary manufacturer: Wellman Group
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Orifice, cataloged under National Stock Number 6680-01-290-4027, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Wellman Group. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameOrifice
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersWellman Group (CAGE K7018); Fischer and Porter Co (CAGE 22375)
Technical Specifications
ParameterValue
NSN6680-01-290-4027
Primary Part Number174 ITEM 6
Item NameOrifice
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerWellman Group
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-003-8927A1746 INTERCHANGEABLE
Screw,machine
United Electric Controls Co Div Precision Sensors Division
5330-00-146-94611746 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
3020-00-267-6771174-6 INTERCHANGEABLE
Link,roller Chain
Harbormaster Marine, Inc
5940-00-549-5963174-6 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
6150-00-799-9703A1A INTERCHANGEABLE
Load Bank,electrical
William Spencer
5805-00-975-5055 INTERCHANGEABLE
Shaft
5910-01-204-00381746 INTERCHANGEABLE
Capacitor Assembly
Centroid, Inc. Dba Centroid Inc
5905-01-294-5776L12J3K6 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5330-01-377-06461746 INTERCHANGEABLE
Gasket
Corken International Corp Sub of Hinderliter Industries Inc
5310-01-400-38001746 INTERCHANGEABLE
Washer,lock
Coffin Turbo Pump Inc
Cross-Reference Index
Part NumberManufacturer
174 ITEM 6 Wellman Group (GBR)
356A148U03 Fischer and Porter Co (USA)
X5008/12/174/6 Wellman Group (GBR)
X5008/12/174 ITEM 6 Wellman Group (GBR)
174/6 Wellman Group (GBR)
Related Parts
5305-00-003-8927INTERCHANGEABLE
SCREW,MACHINE
A1746
5330-00-146-9461INTERCHANGEABLE
GASKET
1746
3020-00-267-6771INTERCHANGEABLE
LINK,ROLLER CHAIN
174-6
5940-00-549-5963INTERCHANGEABLE
TERMINAL,LUG
174-6
6150-00-799-9703INTERCHANGEABLE
LOAD BANK,ELECTRICAL
A1A
5805-00-975-5055INTERCHANGEABLE
SHAFT
5910-01-204-0038INTERCHANGEABLE
CAPACITOR ASSEMBLY
1746
5905-01-294-5776INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
L12J3K6
5330-01-377-0646INTERCHANGEABLE
GASKET
1746
5310-01-400-3800INTERCHANGEABLE
WASHER,LOCK
1746
3460-01-648-2474INTERCHANGEABLE
COLLET,MACHINE
1746

Frequently Asked Questions

What is NSN 6680-01-290-4027?

NSN 6680-01-290-4027 is a Orifice, manufactured by Wellman Group, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-290-4027?

NSN 6680-01-290-4027 has 5 cross-referenced part numbers: 174 ITEM 6 (Wellman Group), 356A148U03 (Fischer and Porter Co), X5008/12/174/6 (Wellman Group), X5008/12/174 ITEM 6 (Wellman Group), 174/6 (Wellman Group).

What NSN replaces 6680-01-290-4027?

There are 11 known substitutes for 6680-01-290-4027: 5305-00-003-8927, 5330-00-146-9461, 3020-00-267-6771 and 8 more. Verify interchangeability with system specifications before substitution.

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