PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-91Crank

Dresser Industries Inc Leroi Div · NSN 2990-00-430-0657 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-430-0657 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-430-0657. Primary manufacturer part number: 50-91.
Features
  • Crank — FSC 2990
  • 1 verified cross-reference
  • Primary manufacturer: Dresser Industries Inc Leroi Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Crank, cataloged under National Stock Number 2990-00-430-0657, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. 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.

Catalog Facts
Item NameCrank
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersDresser Industries Inc Leroi Div (CAGE 35301)
Technical Specifications
ParameterValue
NSN2990-00-430-0657
Primary Part Number50-91
Item NameCrank
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-027-717235-1009-SW-02B-XFW-0/5000LB INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
2520-00-128-11175091 INTERCHANGEABLE
Shifter Fork,vehicular
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
5330-00-286-6868ID 1.625IN X OD 2.374 X .50IN W INTERCHANGEABLE
Seal,plain Encased
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5305-00-368-96815091 INTERCHANGEABLE
Screw,machine
Smith & Wesson Sales Company
2805-00-516-72204650517 INTERCHANGEABLE
Valve,poppet,engine
Agco Corp Parts Opn
5305-00-622-110203091B000 INTERCHANGEABLE
Screw,slide Plate
Smith & Wesson Sales Company
4320-00-670-13335091 INTERCHANGEABLE
Parts Kit,pump Unit,reciprocatin
Hydro-Aire Aerospace Corp
6145-01-112-62095091 HARD DRAWN INTERCHANGEABLE
Braid,wire
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
6240-01-257-2153106 INTERCHANGEABLE
Lamp,incandescent
Southern Ambulance Builders Co Inc Dba Sabc Inc
5935-01-438-3210 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
50-91 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
6685-00-027-7172INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
35-1009-SW-02B-XFW-0/5000LB
2520-00-128-1117INTERCHANGEABLE
SHIFTER FORK,VEHICULAR
5091
5330-00-286-6868INTERCHANGEABLE
SEAL,PLAIN ENCASED
ID 1.625IN X OD 2.374 X .50IN W
5305-00-368-9681INTERCHANGEABLE
SCREW,MACHINE
5091
2805-00-516-7220INTERCHANGEABLE
VALVE,POPPET,ENGINE
4650517
5305-00-622-1102INTERCHANGEABLE
SCREW,SLIDE PLATE
03091B000
4320-00-670-1333INTERCHANGEABLE
PARTS KIT,PUMP UNIT,RECIPROCATIN
5091
6145-01-112-6209INTERCHANGEABLE
BRAID,WIRE
5091 HARD DRAWN
6240-01-257-2153INTERCHANGEABLE
LAMP,INCANDESCENT
106
5935-01-438-3210INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5998-01-441-6444INTERCHANGEABLE
EXTENDER CARD,ELECTRONIC TEST
1000-5091
3120-01-459-0143INTERCHANGEABLE
BUSHING,SLEEVE
OB5091

Frequently Asked Questions

What is NSN 2990-00-430-0657?

NSN 2990-00-430-0657 is a Crank, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-430-0657?

NSN 2990-00-430-0657 has 1 cross-referenced part number: 50-91 (Dresser Industries Inc Leroi Div).

What NSN replaces 2990-00-430-0657?

There are 12 known substitutes for 2990-00-430-0657: 6685-00-027-7172, 2520-00-128-1117, 5330-00-286-6868 and 9 more. Verify interchangeability with system specifications before substitution.

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