PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38903Pulley,whelped Groove

Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division · NSN 3950-01-399-1051 · FSC 3950 · No Item Name Available
Verified by PartsTable
NSN 3950-01-399-1051 — this item is cataloged by the U.S. Government under National Stock Number 3950-01-399-1051. Primary manufacturer part number: 38903.
Features
  • Pulley,whelped Groove — FSC 3950
  • Material: STEEL
  • 2 verified cross-references
  • Primary manufacturer: Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
Applications
  • Applications requiring Steel construction
General Description

The Pulley,whelped Groove, cataloged under National Stock Number 3950-01-399-1051, is classified within Federal Supply Class 3950 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3950-01-399-1051
Primary Part Number38903
Item NamePulley,whelped Groove
FSC / FSG3950 / 39 — No Item Name Available
ManufacturerIngersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
StatusACTIVE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5985-00-455-44878491B-003 INTERCHANGEABLE
Attenuator,fixed
Keysight Technologies Inc
5950-00-648-6737663999 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Rms - Mitchel Field
5315-00-899-313338903 INTERCHANGEABLE
Pin,straight,headless
Lourdes Industries, Inc.
4820-00-924-0533N38903 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
6680-01-121-014438903 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5910-01-364-105838903 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit
5940-01-371-5268 INTERCHANGEABLE
Terminal,lug
Cross-Reference Index
Part NumberManufacturer
38903 PRIMARY Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (USA)
38903 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
5985-00-455-4487INTERCHANGEABLE
ATTENUATOR,FIXED
8491B-003
5950-00-648-6737INTERCHANGEABLE
TRANSFORMER,POWER
663999
5315-00-899-3133INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
38903
4820-00-924-0533INTERCHANGEABLE
SEAT,VALVE
N38903
6680-01-121-0144INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
38903
5910-01-364-1058INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
38903
5940-01-371-5268INTERCHANGEABLE
TERMINAL,LUG

Frequently Asked Questions

What is NSN 3950-01-399-1051?

NSN 3950-01-399-1051 is a Pulley,whelped Groove, manufactured by Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division, classified under FSC 3950 (No Item Name Available). Status: active.

What are the part numbers for NSN 3950-01-399-1051?

NSN 3950-01-399-1051 has 2 cross-referenced part numbers: 38903 (Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division), 38903 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 3950-01-399-1051?

There are 7 known substitutes for 3950-01-399-1051: 5985-00-455-4487, 5950-00-648-6737, 5315-00-899-3133 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38903?

Key specifications for 38903: Material: STEEL; End Item Identification: MODEL 7700-E CHAIN HOIST. 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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