PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B4891Rotor,generator

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2925-01-423-4962 · FSC 2925 · No Item Name Available
Verified by PartsTable
NSN 2925-01-423-4962 — this item is cataloged by the U.S. Government under National Stock Number 2925-01-423-4962. Primary manufacturer part number: 1B4891.
Features
  • Rotor,generator — FSC 2925
  • 3 verified cross-references
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Rotor,generator, cataloged under National Stock Number 2925-01-423-4962, is classified within Federal Supply Class 2925 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRotor,generator
FSC / FSG2925 — No Item Name Available (FSG 29)
ManufacturersRtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Unison Industries, Llc Dba Unison Industries Inc (CAGE 83311); Unison Industries Llc (CAGE 59501)
Technical Specifications
ParameterValue
NSN2925-01-423-4962
Primary Part Number1B4891
Item NameRotor,generator
FSC / FSG2925 / 29 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5977-00-308-06874630-4 INTERCHANGEABLE
Brush,electrical Contact
Ward Leonard Ct Llc
4820-01-286-9743463-04 INTERCHANGEABLE
Cap,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5330-01-291-507146300 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5120-01-429-655400946304000 INTERCHANGEABLE
Wrench Set,socket
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
6515-01-451-195246304 INTERCHANGEABLE
Calf Skin
Bioskin, Llc
7125-01-662-9284 INTERCHANGEABLE
Cabinet,storage
Cross-Reference Index
Part NumberManufacturer
1B4891 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
46304 Unison Industries, Llc Dba Unison Industries Inc (USA)
46304 Unison Industries Llc (USA)
Related Parts
5977-00-308-0687INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
4630-4
4820-01-286-9743INTERCHANGEABLE
CAP,VALVE
463-04
5330-01-291-5071INTERCHANGEABLE
SEAL,PLAIN ENCASED
46300
5120-01-429-6554INTERCHANGEABLE
WRENCH SET,SOCKET
00946304000
6515-01-451-1952INTERCHANGEABLE
CALF SKIN
46304
7125-01-662-9284INTERCHANGEABLE
CABINET,STORAGE

Frequently Asked Questions

What is NSN 2925-01-423-4962?

NSN 2925-01-423-4962 is a Rotor,generator, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2925 (No Item Name Available). Status: active.

What are the part numbers for NSN 2925-01-423-4962?

NSN 2925-01-423-4962 has 3 cross-referenced part numbers: 1B4891 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 46304 (Unison Industries, Llc Dba Unison Industries Inc), 46304 (Unison Industries Llc).

What NSN replaces 2925-01-423-4962?

There are 6 known substitutes for 2925-01-423-4962: 5977-00-308-0687, 4820-01-286-9743, 5330-01-291-5071 and 3 more. Verify interchangeability with system specifications before substitution.

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